this is bbc america, and now live from london, "bbc world news." >> hello, i'm james menendez with "bbc world news." our top stories. the head of the u.n. mission fighting ebola tells the bbc it doesn't have the resources necessary to defeat the disease. he says more help is urgently needed. wirelurker could be targeting users of errs of app products in china. one of australia's best-known rock stars, the ac/dc drummer is charged with plotting

to have two men killed. and a miraculous rescue at sea for this fisherman. he survived for two days before being spotted. a warm welcome to the program. the head of the u.n. mission nighting ebola in west africa has told the bbc he doesn't yet have the resources necessary to defeat the deadly disease. he says more help is urgently needed. he praised contributions from britain, which opened a new ebola center in sierra leone on wednesday. he also said that the united states, china, and cuba had all sent significant numbers of soldiers or medics, but he says it's still not enough. talking to our international development correspondent mark doyle, who's been giving me this

update. >> the essence of what the u.n. boss here -- the essence of what he says is that he doesn't yet have enough resources from the international community to defeat the disease. he says it's working as hard as it can. has some resources but he doesn't have enough medical workers, enough infrastructure, resources and so on to defeat the disease yet, teams on the ground in the affected countries, for example, in sierra leone, very going to villages. there are areas where no help is arriving at all. i put it to him that this is a very situation still. >> this disease is still a crisis in some areas. there's no doubt about it. there are people that are not getting any type of help right

now, and we definitely do not have the response capability on the ground now from the international community, from the world to defeat this disease yet. it's not here yet. we need more resources so we can cover more area so we can defeat the disease wherever it is. >> so are you going to defeat this disease, and is it going to be months or is it going to be years? >> it's going to be less than years. >> less than years? so a year perhaps? >> i can't say exactly when, i really can't, but the goal definitely is down to zero. one case is one case too many. one case is a threat to that community, that country, the region, and the world. so the goal is zero and we are going to get there. >> tony banbury there. and mark, this all comes at the same time as the world health organization is saying that its figures for the number of cases and deaths, it's revising them just slightly downwards. just tell us a bit more on that. >> reporter: well, frankly, james, the figures vary a lot.

they're very unreliable. and they certainly don't capture all of the cases. there's no doubt about that. even the world health organization officials that i've been speaking to will say that there are probably double the number that even they're able to count. so yes, there has been a slight dip in the cases in liberia, for example. in the capital monrovia. but it's still a crisis there and there has been a large increase in sierra leone in recent weeks. so although the figures do move up and down sometimes, the fact is that the number of people who are dying is still on the increase. this is still a major crisis, and the international community has not mobilized the resources yet via the united nations, that the u.n. needs to defeat this disease. >> and mark, i imagine they're not saying it publicly, but in private, why are the officials leading the fight against ebola. why do they think that those

countries around the world have been so slow in their response? >> reporter: well, united nations officials are diplomats so they won't go around pointing fingers, but i can say it. the fact is that this started in africa. the rest of the world didn't really care very much about it. it started in the '70s in isolated villages. this latest disaster, this latest outbreak is the most serious ebola outbreak there's ever been. and the international community, frankly, didn't really care very much about it until it started appearing in the united states and europe with some isolated cases. >> don't forget, there's plenty more information on our website, including a special page on ebola. it's got all the latest figures, and also how different countries are dealing with the outbreak. just log on to bbc.com/ebola. now, there are warnings that new malicious software is

targeting chinese users of apple products. it's called wirelurker and it's infecting apple's desk top and mobile operating systems. it appears to have originated in china. earlier, our reporter in beijing told me why this new malware is alarming researchers. >> reporter: well, this is a piece of malware that the researchers say heralds a new era in attacks. they are clearly very worried about it. the people who have identified this particular virus. basically it is a piece of malware that can jump from apple device to apple device, from a mobile phone, for example, to an apple computer, and it seems that it is being used at the moment to gather bits of data. the researchers say at the moment they can't really specify any serious breach of security. they say it may have been used to gather the users' contacts,

messaging i.d.s, that kind of things. but the potential is there for it to be used to take more sensitive data. as you say, they think this particular piece of malware originated in china. they think most of the people affected by it at the moment are chinese users. they suggest something like 400 apps. it's the apps themselves that become affected by this particular piece of malware. they are then downloaded by users and they can go on to affect other devices, and they think a total of something like 350,000 users may so far have been affected. >> and if you are an apple user, how will you know if you've received this piece of malware? >> at the moment, apple themselves haven't issued a comment. the researchers themselves don't appear to have any particular piece of advice, beyond using normal sort of sensible

precautions. and i think really users in china should be very careful, obviously, about the apps they download, and in particular using usb devices from -- to share data between devices, particularly with other users. apple has made a big thing about improving security, particularly with its new operating systems, and i think there will be some concern, particularly, of course, amongst users in china, about what this latest piece of malware might mean. >> john sudworth in beijing. it's been alleged that chinese buyers bought thousands of kilos of ivory in tanzania and smuggled it when the premier visited. he said the ivory was bought leading up to the visit last year and hidden in diplomatic

bags to avoid detection. it also claims that delegates bought large amounts of ivory. it is time for the business news. aaron is here. hello. the oil price. >> yep. >> down. down, down, down indeed. it's the big focus of the business news today. you like these robotic cameras? they're great, aren't they? let's start with the price of oil. the black stuff. it's in the red. it has been plunging. a drop in global demand and revolution of shale oil production, otherwise known as fracking, particularly in the united states, has sent crude prices to their lowest level in four years. add to the fact that saudi arabia's move earlier this week to cut its price, that it charges its biggest customer, and it all has had a major impact. in the last couple of hours, the price of crude for the december delivery, $82.58 a barrel.

that is down 27% from the peak, since the summer. so what impact does the falling price of oil have on countries that are dependent on oil? russia is one example. it's exactly what i asked one russian expert a little while earlier and let's have a listen to what he had to say. >> some depend on oil and gas revenues in the range of about 52%. when mr. putin was appointed the president, suddenly appointed president 14 years ago, the dependence was just 9%. and now, any change in oil prices can have a democratic impact on the russian economy. if the price false by 10%, it means about 2% of the gdp of russia getting down. >> let me just give you an interesting fact, breaking that down further. for every $1 fall in the price of oil, russia loses $2 billion in revenue. ouch. talking of russia, its currency

has fallen to a new record low, with 45 rubles to the dollar. the top of the central bank announced wednesday that it would limit its intervention to prop it up. reported to have spent more than $29 billion defending the ruble in october. that the ruble has lost more than a quarter of its value against the dollar since the start of the year. as a result, of course, of the international sanctions imposed over russia's actions in ukraine and, of course, going back to that black stuff, the fall in the price of one of the country's biggest exports and that is oil. here's a question. will the european central bank act again to boost the region's sluggish economy? in a few hours time, we'll get the result of its latest policy meeting in frankfurt. the ecb has already cut its main interest rate to just 0.05 of a percent. ain't much room to go, is there? it's also offering ultra cheap loans to banks on the condition that they lend that money out. they get it out there to consumers and companies and they've also started buying up

bank loans to encourage against further lending. growth as we know in the euro region is dismal. the question is, lots of pressure on ecb. what more can they do? we're going to keep you updated on that when any news comes out from frankfurt. follow me on twitter. you can tweet me. i'll tweet you back. that's with it the business. more business on "gmt" in just over an hour's time. >> they're going to have to pay us to borrow money. >> hey, that would be nice. the drummer from the australian heavy metal band ac/dc phil rudd, he's been charged in new zealand with plotting to try to have two men killed. he is also accused of threatening to kill and possession of drugs. >> reporter: one of australia's best-known rock stars. phil rudd appeared in court just briefly in new zealand. he's accused of plotting to have two men killed. the judge ordered names of the alleged victims be suppressed, as well as that of the alleged

hit man. it followed a raid on the drummer's house on thursday morning. the 60-year-old was also charged with drug possession and threatening to kill. phil rudd's career with ac/dc began more than 40 years ago. the band has sold more than 200 million records. rudd, who's australian born, moved to new zealand in 1983 after he was kicked out of the band. but he rejoined ac/dc in 1994. the group is supposed to have a new album out next month. phil rudd was released on bail. he's due back in court in three weeks time. the prime minister of netherlands has arrived in australia to discuss the shooting down of a malaysian passenger plane in july this year. nearly 200 dutch passengers and 38 australians were killed when mh17 crashed in eastern ukraine. pro-russian separatists denied

being behind the attack. tony abbott says he expects russian president vladimir putin to cooperate fully with the dutch-led investigation. >> what i'll be saying to him is that australia expects full russian cooperation with the investigation. we don't want the investigation ridiculed. we don't want the investigation compromised or sabotaged. we want full cooperation with the investigation. do stay with us here on "bbc world news." still to come this hour, our pop-up team are in baton rouge to talk crime and poverty. what can america do to make things better? chocolaty, creamy. chocolaty, creamy. with a little something extra. mmm deliciousness. cookies or almonds. yumminess. hershey's is mine, yours, our chocolate. you drop 40 grand on a new set of wheels, then... wham! a minivan t-bones you.

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you're watching "bbc world news." i'm james menendez. the headlines so far. the head of the mission fighting ebola tells the bbc he doesn't

yet have enough resources to beat the outbreak. news that apple products in china are warned of a threat from malicious software called wirelurker. now, to a story of a miracle. a real life story, not something out of a hollywood film. a man has been rescued in colombia after spending two days in the open ocean. he was spotted clinging to a foam watercooler 35 kilometers off the coast. >> reporter: a tiny speck in the vast pacific ocean off the coast of colombia. this is a local fisherman, lost at sea for two days. he went out fishing with a companion last friday. but two days later, their boat capsized. he drifted at sea, clinging to a watercooler 35 kilometers off the coast. and then this happened. like a miracle, coast guard

sailors who were running drills in this area spotted and rescued him. >> translator: i am okay now because the navy rescued me. i thought i was going to die. i didn't think about anything else. >> reporter: a story of hope and survival at sea. solano salazar got away lightly. he is suffering from dehydration, but otherwise okay. his companion, though, is still missing. thousands of people have been marching through the streets of mexico city to protest the slow pace of an investigation into the whereabouts of 43 missing students. they disappeared after clashing with police in the state of guerrero more than five weeks ago. will grant reports. >> reporter: from the moment the 43 students were abducted in late september, the message from their friends and families has remained the same. alive they were taken, and alive

we want them back. now in mexico citying thousands of students from universities across the city turned out to add their voices to that call, too. >> translator: i'm here to tell the authorities that we have no government and that we have no faith in them. >> translator: we want justice for the missing students. we want their bodies to be found, whatever it takes. if they aren't alive, then at least find them so that their families can mourn. >> reporter: for over a month, the families and colleagues of the 43 student teachers have tried to remain hopeful. despite the discoveries of mass graves around iguala. but their frustration of the pace of the investigation is growing by the day. >> translator: we are angry at the answers we get every day. there are more than 3,000 police officers working in iguala in the western state of guerrero, but they are useless because they're still searching without any results.

>> reporter: the government points to the recent arrests of mayor. iguala and his wife, both of whom fled after the students disappeared and are accused by the attorney general of having ordered the abductions. but there is a sense that patience in guerrero is wearing thin. nearly 40 bodies have been found around iguala since september, but the government says they are not the remains of the disappeared students. supporters of the missing 43 no longer trust the authorities to find their loved ones. and the signs are they may increasingly try to take matters into their own hands. will grant, bbc news, guerrero. if you're blind, the journey to work or a trip to the shop can feel like an almost impossible obstacle course. but now, some new technology has been trialed which may help people with sight problems navigate their way around city streets. it's being developed by microsoft and the guide dogs charity. our technology correspondent has been out with a group of

volunteers who have been testing it on the streets of southern england. >> that's a lamp post. >> right. >> reporter: ever try crossing a city blindfolded? that is what visually impaired people do every day. even with the help of a guide, it's frightening. >> this is really difficult to traverse. >> all the things that you have to think about, you know. you have to think about it on a daily basis. >> reporter: now new technology which gives you audio signals to guide you on the journey could help. all i'm getting is the pig. >> reporter: the headset works by linking to a mobile phone beacons which locate specific objects. bus stops, shops. >> main residential road for local shops. >> reporter: the technology being trialed on a route in reading. this woman has been totally

blind for 11 years has been a tester and she says it's given her a new sense of freedom. >> gives me masses of confidence now because it means that i've got more freedom to be more spontaneous. i don't have to just go to places i already know. it enables me to try different locations. be able to go independently somewhere without taking a friend. >> number nine bus to reading station. >> reporter: on the bus, the headset provides more information. >> there are 18 stops before yours. >> reporter: the project is just a pilot at the moment, turning it into a real service would involve major investment. so this system gives you a sort of 3-d surround sound picture of your world, and it's pretty impressive. but for this system to take off on a big scale, you'd need these beacons to be put just about everywhere, from the bus, the train, the supermarket, to every lamp post. the original idea of this project came from a microsoft engineer who is himself blind. he has big ambitions for it.

>> i can't see a reason why this shouldn't become standard in people's lives. technology that's required to make it here and available now. >> reporter: nearly 200,000 visually impaired people in britain hardly ever leave home because they lack confidence. the hope is that one day soon, this kind of system could help them step out with confidence. bbc news, reading. now, does the area you live in define who you are? in america, the zip code 70805 has become synonymous with poverty and high crime rates. a postcard for part of baton rouge in louisiana. the latest of our bbc pop-up reports, we've been there to find out what residents would do to make life better there.

♪ >> in 70805 in baton rouge. when i first got to baton rouge, people were telling me this was the worst neighborhood in town. >> this is what it does to you. >> it has some of the highest homicide rates and hiv rates not only here, but in the country as a whole. >> my neighbor actually got shot last year. >> but, everywhere has good people and i want to ask people here how would they change america if they had the chance. >> first of all, in the famous words of a gentleman that got beat in california, i want to know why can't we all get along. everybody hates everybody. i can't understand. >> in this country, we say that we are the united states of america. but we actually are not united. you can look at the political

realm, democrats, republicans, they are not united at all. >> put god back into schools. the courthouse. >> i try and try and try. do application five times, get no response, even though you called, i'm just checking on the application. >> i have bills to pay. you have money and i don't. i can't be concerned with you or your family's well-being. all i'm thinking about is my little sister's hungry, or my bills need to be paid. this is another one. another time when i got shot with an ak. it's violent. each two separate incidents. >> i say racism, because i think racism is something that they don't talk about. but it still happens. it still happens. and it's been happening for years. people just don't want to open up about it.

>> everyone has to be able to rise to an income threshold that allows them to live and survive. everyone has a passion. everyone is gifted with a talent. and you just have to help people tap in to what those are. >> resources need to go to improving the educational system, but it also needs to go to improving our public service. >> residents of baton rouge. stay with us here on bbc. >> it's time to take a look at the weather conditions in north america. you lower handicaps... and raise hopes. and you...rent from national. because only national lets you choose any car in the aisle... and go. you can even take a full-size or above, and still pay the mid-size price. (pro) nice drive. (vo) well played, business pro. well played. go national. go like a pro.

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comparing rates for you. now that's progressive. [ high-pitched ] nailed it! more help is urgently needed. wirelurker could be targeting users of apple products in china. one of australia's best known rock stars, the ac/dc drummer phil rudd is charged with plotting to have two men killed. and are falling crude oil

values good or bad? we look at brazil to see how a prospect might be affected by the low oil prices. a very warm welcome to the program. the head of the u.n. mission fighting ebola in west africa has told the bbc he doesn't yet have the resources necessary to defeat the deadly disease. tony banbury says more help is urgently needed. he praised contributions from britain, which opened a new ebola center in sierra leone on wednesday. he also said that the united states, china, and cuba had all sent significant numbers of soldiers or medics, but he says it's still not enough. he was talking to our international development correspondent mark doyle, who's been giving me this update.

>> reporter: the essence of what the u.n. boss here who's in charge of the ebola response here in ghana where they have their headquarters near to the countries which are affected worst by this disease, the essence of what he says is they don't yet have enough resources from the international community to defeat the disease. he says he's working as hard as it can. has had some successes. but he doesn't have enough medical workers, enough infrastructure, resources and so on to defeat the disease yet. now, i'm speaking to you from ghana, but the teams on the ground in the affected countries, for example, in sierra leone have been going to villages, and there are areas where no help is arriving at all. and i put it to mr. banbury that this was a very serious situation still. >> this disease is still a crisis in some areas. there's no doubt about it. there are people, villages, towns, areas that are not getting any type of help right now. and we definitely do not have

the response capability on the ground now from the international community, from the world to defeat this disease yet. it's not here yet. we need more resources, so we can cover more areas, so we can defeat the disease wherever it is. >> so are you going to defeat this disease and is it going to be months or is it going to be years? >> oh, it's going to be less than years. >> reporter: less than years? so a year perhaps? >> i can't say exactly when, i really can't, but the goal definitely is down to zero. one case is one case too many. one case is a threat to that community. that country. the region. and the world. so the goal is zero, and we are going get there. >> tony banbury there. and mark, this all comes at the same time as the world health organization is saying that its figures for the number of cases and deaths, it's revising them just slightly downwards. tell us a bit more about that. >> reporter: well, frankly, james, the figures vary a lot.

they're very unreliable. and they certainly don't capture all of the cases. there's no doubt about that. even the world health organization officials that i've been speaking to will say that there are probably double the number that even they're able to count. so yes, there has been a slight dip in the cases in liberia, for example. in the capital monrovia. but it's still a crisis there. and there's been a large increase in sierra leone in recent weeks. so although the figures do move up and down sometimes, the fact is that the number of people who are dying is still on the increase. this is still a major crisis, and the international community has not mobilized the resources yet via the united nations that the u.n. needs to defeat this disease. >> i imagine they're not saying it publicly, but in private, why are the officials leading the fight against ebola? why do they think those countries around the world have been so slow in their response?

>> well, united nations officials are diplomats, so they won't go around pointing fingers, but i can say it. i mean, the fact is that this disease started in africa. the rest of the world didn't really care very much about it. it started in the '70s in isolated villages. this latest disaster, this latest outbreak, this biggest ebola outbreak there's ever been. and the international community frankly didn't really care very much about it until it started appearing in the united states and europe with some isolated cases. >> there's plenty more information on our website, including a special page on ebola. it has all the latest numbers and figures. also looks at how different countries are dealing with the outbreak. just go online for all the latest news and interviews. it's the bbc news website. there are warnings today

that new malicious software or malware is targeting chinese users of apple products. it's called wirelurker, and it's infecting apple's desk top and mobile operating systems. earlier, the bbc's john sudworth told me why this new malware is so alarming researchers. >> reporter: well, this is a piece of malware that the researchers say heralds a new era in malware attacks. they are clearly very worried about it. the people who have identified this particular virus. basically, it is a piece of malware that can jump from apple device to apple device, from a mobile phone, for example, to an apple computer. and it seems that it is being used at the moment to gather bits of data. the researchers say at the moment they can't really specify any serious breach of security, they say it may have been used

to gather the users' contacts, messaging i.d.s, that kind of things. but the potential is there for it used to be used to take more sensitive data. as you say, they think this particular piece of malware originated in china. they think most of the people affected by it at the moment are chinese users. they suggest something like 400 apps. it's the apps themselves that become affected by this particular piece of malware. they are then downloaded by users and they can go on to affect other devices. i think a total of something like 350,000 users may so far have been affected. >> john, if you are an apple user, how will you know if you've received this piece of malware? >> reporter: at the moment, apple themselves haven't issued a comment. the researchers themselves don't appear to have any particular piece of advice, beyond using

normal sort of sensible precautions. and i think really users in china should be very careful, obviously, about the apps they download and in particular using usb devices from -- to share data between devices, particularly with other users. apple has made, of course, a big thing about improving security, particularly with its new operating systems. and i think there will be some concern particularly, of course, amongst users in china, about what this latest piece of malware might mean. >> john sudworth in beijing. staying in china, it's been alleged that chinese buyers bought thousands of kilos of ivory in tanzania and smuggled it out of the country on the personal plane of the chinese president xi jinping when he visited africa. the environmental investigation agency, which is based here in london, said the ivory was bought in the weeks leading up to president xi's visit to

tanzania last year and hidden in diplomatic bags to avoid detection. it also claims that delegates traving with mr. xi bought large amounts of ivory. the drummer from the australian heavy metal band ac/dc phil rudd, he's been charged in new zealand with plotting to try to have two men killed. the 60-year-old is also accused of threatening to kill and of possession of drugs. john donison reports. >> reporter: phil rudd appeared in court just briefly in new zealand. he's accused of plotting to have two men killed. the judge ordered the names of the alleged victims be suppressed, as well as that of the alleged hit man. it followed a raid on the ac/dc drummer's house on thursday morning. the 60-year-old was also charged with drug possession and threatening to kill. phil rudd's career with ac/dc began more than 40 years ago. the band has sold more than 200

million records. rudd, who's australian born, moved to new zealand in 1983 after he was kicked out of the band. but he rejoined ac/dc in 1994. the group is supposed to have a new album out next month. phil rudd was released on bail and is due back in court in three weeks time. bbc news, sydney. the prime minister of the netherlands has arrived in australia to discuss the shooting down of a malaysian passenger plane in july this year. nearly 200 dutch passengers and 38 australians were killed when mh17 crashed in eastern ukraine. pro-russian separatists deny being behind the attack. australian prime minister tony abbott says that he expects the russian president vladimir putin to cooperate fully with the dutch-led investigation. >> what i'll be saying to him is that australia expects full russian cooperation with the investigation. we don't want the investigation ridiculed. we don't want the investigation

compromised or sabotaged. we want full cooperation with the investigation. >> tony abbott. thousands of people have been marching through the streets of mexico to protest the slow pace of the investigation of 43 missing students. they disappeared after clashing with police in guerrero more than five weeks ago. this report from will grant. >> reporter: from the moment the 43 students were abducted in late september, the message from their friends and families has remained the same -- alive they were taken, and alive we want them back. now in mexico city, thousands of students from universities across the city turned out to add their choices to that call, too. >> translator: i'm here to tell the authorities that we have no government, and that we have no faith in them. >> translator: we want justice for the missing students.

we want their bodies to be found, whatever it takes. if they within the alive, then at least find them so that their families can mourn. >> reporter: for over a month, the families and colleagues of the 43 student teachers have tried to remain hopeful that they might still be alive. despite the discovery of scores of bodies in mass graves around iguala. but their frustration at the pace of the investigation is growing by the day. >> translator: we are angry at the answers we get every day. there are more than 3,000 police officers working in iguala in the western state of guerrero. but they are useless, because they're still searching without any results. >> reporter: the government points to the recent arrests of mayor of iguala and his wife, both of whom fled after their students disappeared and are accused by the attorney general of having ordered the abductions. but there is a sense that patience in guerrero is wearing thin. nearly 40 bodies have been found around iguala since september, but the government says they are

not the remains of the disappeared students. supporters of the missing 43 no longer trust the authorities to find their loved ones, and the signs are they may increasingly try to take matters into their own hands. will grant, bbc news, guerrero. >> do stay with us here on "bbc world news." still to come this hour, the choice facing many people in iran, have a sex change, or leave the country forever. foreign markets. asian debt that recognizes the shift in the global economy. you know, the kind that capitalizes on diversity across the credit spectrum and gets exposure to frontier and emerging markets. if you convert 4-quarter p/e of the s&p 500, its yield is doing a lot better... if you've had to become your own investment expert, maybe it's time for bny mellon, a different kind of wealth manager ...and black swans are unpredictable. smooth intro man. and yes that is the 5.7 inch note 4. is that the new galaxy note 4?

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i'm james menendez. our headlines so far. a warning from the u.n. on ebola. the head of the mission fighting the disease tells the bbc he doesn't have enough resources to beat the outbreak. in china, there's a threat of a new malware, called

wirelurker. the ebola outbreak in west africa, the race is on to develop a vaccine to protect those most at risk. our africa health correspondent anne soy is in the capital of mali, and that's where some vaccine trials are taking place. anne, tell us a bit more about what's been happening. >> reporter: well, this is part of a bigger trial that is happening in three countries now, and hopefully in four later. the trials started in the united kingdom and in the u.s., so mali looks at whether those vaccines are going to work. they started on the 8th of october and over time they have been vaccinating different groups of people. today, they have a group of ten people that they are vaccinating. so the hope is that by the end of november, they should know if this vaccine actually works. >> do they have any indication

at this stage as to how effective it is? i mean, what's the response been from those volunteers who have had it? >> it's still very early, but we have met with the first man who was vaccinated here in mali and so far he has had no adverse reactions, it's almost a month later. so there's growing confidence among the scientists, that in terms of safety, the vaccine is showing good results early. of course, it's very early. it's something that normally takes many, many years. in this case, they are trying to expedite it and do it in a matter of months. so after this phase, if they get good results, they would go to phase two where they will get more participants being vaccinated and observe them over time. >> and of course, this is part of a much broader effort, isn't it, to find a vaccine involving all sorts of different companies and different types of drugs.

>> yes. this is a vaccine that has been manufactured by the uk, a separate effort going on with vaccines that -- the kind of vaccines that arrive from canada in geneva, and those will be tried in switzerland, germany, kenya. so the rush is on to find a solution of what the motivation is, the ongoing outbreak of ebola in sierra leone, liberia, and guinea. >> our many thanks. that was anne soy talking to us from the capital of mali. the price of oil has been plunging. it is now at its lowest in four years. experts say it's a result of a drop in global demand, and the revolution in shale oil production, which is known as fracking. so how is the falling price affecting non-opec producers? here is a report now from sao

paulo in brazil. >> reporter: back in 2007 when the president discovered the huge oil reserves, the economic possibilities seemed endless. and even during the recent presidential campaign, dilma rousseff talked of the huge benefits of brazil's oil industry. but it's not all as rosy as the campaign ads would suggest. state-owned oil company petro has been plagued by corruption scandals. one of the biggest challenges is future exploration, reveals oil reserves are found deep in the atlantic ocean, which is costly to extract. falling prices could make it harder. >> if oil prices continue where they are, it will be making less

money, and this is a concern, whether the government will, for instance, increase prices above what they are in the global markets. i don't think so. so it's going to be a temporary issue for the company, yes. >> reporter: with high inflation, fuel subsidies are a costly and political issue here in brazil. with lower oil prices, it means less money needs to be spent on keeping prices artificially low. good news for their finances, but it's not clear how much would be passed on to the average brazilian. what about the wider economy? brazil's oil industry is certainly growing in significance, but it still only represents about 13% of brazil's gdp. sizable, but this country is not wholly dependent on the black stuff. >> translator: it's far from being a principal sector of the economy. brazil has a pretty diversified economy. a pretty big service sector,

agriculture, and a industrial, too, so the oil industry is just one. >> reporter: as president dilma rousseff begins a second term, she's under pressure to boost a economy that's now in recession. falling oil prices may help ease inflation, which is one of the biggest frustrations for brazilians here. but at the same time, she also needs to make the most of brazil's new-found oil wells and ensure that people benefit from it the best way possible. now, there isn't much tolerance for gay men and women in iran. anyone caught having gay sex in iran may still face the death penalty. but they might also find themselves coming under heavy pressure to undergo a sex change. as a result, hundreds of people have fled to turkey from where the bbc persian services sent us this report. >> reporter: this man is 21 years old. he's from iran, but has fled here to turkey because he's gay. he says he was forced to leave when his parents gave him an

ultimatum. >> translator: they wanted to pressure me into having sex change surgery or i'd be taken away by them and killed. >> reporter: so if you'd stayed in iran, you would have done the surgery? >> i am 100% sure i would have done it because of family pressure. >> reporter: leading an openly gay lifestyle in iran would have been impossible. anyone caught having lesbian or gay sex there faces the death penalty. but the law does allow sex change surgery for transgender people. campaigners claim the operation is offered as an alternative or a solution for those who are gay or lesbian. >> our organization had it for research, and 45% of those people who had the surgery were not transgender, were homosexual.

>> reporter: face with such a choice, thousands of gay and lesbian people have left the country. >> i was forced to leave iran because i have no other option. they're forced to change their sex because it's the only way that they can survive. >> reporter: marie is a 37-year-old iranian transsexual now living in turkey. she changed her gender from male to female 12 years ago. did you feel in any way that you can lead a life as a gay man in iran? >> translator: no. after i went to see the psychotherapist, i thought i needed to change my gender. before that, i thought i was gay. >> reporter: now she's out of iran, marie is among those reacting to what happened when she left there. >> i think now if i were in a free society, i wonder, would i have been like i am now? and would i have changed my

gender? i'm not sure. >> reporter: it is nclear from those i spoke to in turkey that there is a great deal of pressure on them. >> ali is now back in london. i was joined by him in the studio, and he gave me this rather startling statistic. >> iran and the united kingdom have the same population, but the number of gender change, gender realignment surgeries back in iran is four times higher than the united kingdom. so i think these numbers are speaking. we spoke to several people in turkey. so they were not sure of whether they did the right thing or not because they were saying that they didn't have access to

information, they didn't have access to the internet. and they were turned by the propaganda and pressure from the society. >> watching your piece reminded me of something i heard earlier this week, which was mahmoud ahmadinejad saying to la ining in the audience that there were no gays in iran. has anything changed since then? especially under the newest president. >> i started working on this topic since 2006 when i heard this from mahmoud ahmadinejad. i was back in iran and i started finding out what gay, lesbian, and transgender life back in iran. i can't say anything from the government side changes, i mean, in the past seven, eight year but i can say society is changing and more people are accepting -- i mean, the issue. and they are speaking about it and they are quite supporting. but, i mean, iran is a big country, and it is not about

cities, for example. you just watched that story about marie. she is from a very small city in iran, and she was saying -- when i ask her that okay, do you think if you were born in canada you were accepted as a feminine man, and she was like, i still don't know if it's really possible for a feminine man to live in canada freely without any sort of harassment or being bullied. so they still do not know about it because of the lack of information. >> and you can see his whole documentary on "our world" here on "bbc world news." that's being broadcast this weekend. the association for international broadcasting has presented a posthumous founders award to the family of this man, who died suddenly at the age of 41. the association said that his legacy of high-quality journalism and sharing of

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hello. i'm karin giannone. you're watching "gmt" on "bbc world news." there's been more u.s. air strikes on extremist targets in syria, as the fight against islamic state continues. we meet the children being brainwashed by jihadists. they're young and they're ready to die for their beliefs. our correspondent speaks to one 13-year-old who says he'll soon join i.s. fighters on the front lines. >> translator: i don't want to