bond kind to any new u.s. sanctions so what's this likely to mean for future u.s. russian relations well it certainly means a deterioration of the relations but let's be honest the relationship between the united states and russia has been strained for quite some time the u.s. says that russia is behaving like an adverse and has to be treated as such and that is for many reasons election meddling of course is one important aspect but also the crises in belarus in the ukraine and the role rochelle plays in these crises certainly all aspects that have contributed to the strained relationship between the u.s. and russia that we're seeing right now all of a silent in washington thank you the hundreds of students kidnapped from their boarding school in nigeria's northern state of zamfara be believed regional governments as the girls and are safe and well after being seized by demand on friday that abduction was the 2nd school kidnapping in nigeria this year.

but their ordeal is over. officials say the almost 300 school children are healthy however some did suffer physical wounds it's the psychological impact of their kidnapping thought may take longer to heal. if you didn't when did most of us injured our feet and we couldn't continue to walk our captors said they would shoot anybody who didn't continue we walked across the river and they hit us and let us sleep under bushes in a forest. i know. for the families of the schoolgirls their relief is unsurmountable. i'm going to mind very happy. you know i guess i'm not god has brought our or deal to an end that he is what we're so happy as them is that i thank god for

everything good and i look dead about god i like to have to allow what he wanted to would not allow him to be and that the students were abducted from this boarding school by an armed gang last friday government officials have been in talks with the kidnappers known locally as bandits up they say these bandits in zamfara state often kidnap for ransom money and to press for the release of their members held in prison authorities are searching for the culprits i think on this one don't think you. would do this when this thing is to somebody you. are lying to you to. call when you see such home phones couples are in and then just that normal. nigeria's president also tweeted saying they're working hard to bring an end to these grim and heartbreaking incidents of kidnapping saying the military and the

police will continue to go after the kidnappers. this latest kidnapping was nigeria's 4th mass abduction in last in 3 months this time it had a happy ending but there are fears that children may become the kidnappers target once again now the year of the united nations says that a terror attack in nigeria's northeast was directly targeted at several humanitarian aid facilities a hospital on the premises of aid agencies in the town of quote were reportedly set ablaze or damaged affecting the support being given to nearly 100000 people islamic state militant group is suspected of being responsible. take a look at some other stories making news around the world now reporters without borders has accused saudi arabia's crown prince of crimes against humanity over the killing of journalist or jamal khashoggi the media watchdog has filed a complaint with germany's public prosecutor seeking an inquiry under the country's

international jurisdiction laws the group accuses saudi arabia of persecute seems to show g. and dozens of other journalists. in the nation's foreign minister has raised concerns about increasing violence against protesters in manama but no must to date a joint account apart from other southeast asian countries in talks with me and most military jumped on the call for every turn to democracy since seizing power a month ago the military government to step up its response to protests from watertown rubber bullets leave live rounds. caught in poland has acquitted 3 gay rights activists accused of offending religious beliefs the women were arrested after producing images of christ on the virgin mary altered to include the l.g. between rainbow in their hands the court found that the women have not sought to offend anyone but rather to defend the people facing discrimination. here in germany state and federal leaders will meet tomorrow to decide whether to extend

the country's coronavirus lockdown until now germans have supported chance of america's cautious approach but opinion polls now indicate that they want the country to open up despite warnings from medical experts. to how much longer that is the question many are asking at the moment and knocked down that began in early november is dragging on and many germans are growing increasingly tired of it . and that if you are well committed i'm really hoping for the easing of some restrictions that we get to see something other than closed shops and restaurants so yes i do hope we're going to open up a bit now it's been obvious cause i'm unemployed and i can't do anything i can't work anywhere and nothing so i just sit around at home. but i passed there's got to be some kind of prospect that some things are going to be possible again soon. and latest poll shows that a clear majority of germans now want to see lockdown measures eased that past 2

weeks have seen some tentative steps in that direction primary school children have returned to some classroom teaching and on monday hairdressers were allowed to reopen. still there doesn't seem to be much light at the end of the tunnel vaccinations in germany are moving at a sluggish pace and infection rates are inching up again fueled by more contagious variants of the virus loosening restrictions now as dangerous experts are warning. if we open up right now just everything so normal life as before we would risk a massive 3rd wave that the speed of infection is really taking up and we seeing a high number of infections in the next weeks and there was a consequence of people getting sick people needing to go to the hospital and people risking their lives. german chancellor angela merkel has so far listened to

scientists and taken a very cautious approach to the pandemic but now pressure on her is growing to prevent germans from losing patience she might have to be ready for some compromise as she heads into the latest meeting to determine gemini's next moves in the pandemic take a look at some more developments in this pandemic the world health organization is emergencies director says it is unrealistic to think the pandemic will be over by the end of this year the global a number of new infections is increasing for the 1st time in 7 weeks u.s. media reporting that former president donald trump and his wife melania received their coronavirus shots before leaving the white house both contracted and recovered from covert 19 in the run up to the presidential election and health experts in china say the vaccine rollout that is slow because it has the virus lost the under control officials say they aim to inoculate 40 percent of the population by june and support the quarter finals of the german cup take place this week and

one of tonight's muchas features the battle of the brosius went to blood bath versus dortmund the game takes on added spice because glad about coach marco rosa will be competing against a team but he will join from this summer. for a coach facing your future employer is never an easy task but glad box mark otos is doing his best to keep the attention off himself ahead of their german cup clash with dortmund. when skin cancer was and this is in no way about marco toes this is about the team of the our changing rooms bursey i mentioned a lot back and so there is no exceptional pressure on me. for me also given that it took. the last time the 2 years matamoras back in late january blood barfoot 4 goals past dortmund in a convincing under sleep of victory. but coach rose a lot has happened since then. it's

a sore we've kind of been going in opposite directions dortmund have found their form with 3 straight wins one in the champions league and 2 in the bundesliga. whereas we just haven't been getting results and. so now mark otoh is has to try to reverse that trend against none other than his future employer. i mean swimming there are some who are worried that the pandemic could lead to subpar performances at this year's tokyo olympics because the thinking goes kobe has caused too many disruptions to athletes training routines but the world's most accomplished a female swimmer in the decade begs to differ the u.s. olympic gold medalist thinks that faster times could be on the way. at age 23 t.d. a decade has a medal count that many can only dream off 5 elliptical medals and if that's not enough she's also broken 14 work records in the pool. but not everyone thinks

records will fall as easily at the upcoming 2020 tokyo games. that includes the most decorated olympian of all time michael phelps and it's all because of the training disruptions caused by the cronut i respect demi keyes has the best of the best will fight back and you're going to see some pasts but we're track cuts i don't think so. i wouldn't dare make a claim i think there there is there has been a lot of fast swimming still during this time and as we've gotten closer and closer and i think you'll see at least a couple i have seen a lot of us forming as i said over the last couple weeks even just in college swimming but the olympic champion does admit the training wasn't always optimal last year i swam in the backyard pool in the bay area for a couple months and did all my weights training in my apartment i just pulled together as much equipment as i could. since last june decades back to her normal

training she's even had time to speak in a tick talk challenge like balancing a glass of milk without spilling a single drop. to keep on her 1st olympic gold medal at the age of 15 she'd be 24 when the games begin internationally. she's eager to actress 6 medal count and li dickie won't rule out breaking a record or 2. and finally there are rumors flying around that the famous british street artist banksy has been back at work and you painting has appeared on one of the walls of a former prison in the english town of reading campaigners have been trying to turn the former chair into an art center for several years now its most famous inmate was the 19th century poet and playwright oscar wilde he was sentenced to prison there after being convicted of sexual crimes. as if you're up to date i'll have more world news of the top of the hour want to get just as that beat up in scope it

like he'd special it just. the fight against the corona virus pandemic. because the rate of infection in developing what does the latest research say. information and contacts the coronavirus update code 19. on t.w. . trying to explain us like a bunch of the queen because i want to see a gemini with her make the last few years have been quite o'brian early. on very

little harm but when it comes to gemma be as on the whole so was in the us for a good stuff perhaps the biggest on the new all the applied $100.00 a bridge i love to be in the news there are pros and there are come but when you feel them all together they realize it's called just another way of living they are you ready to meet dr evans and bird me right just do it. you may not realize it but you with mathematical models every day something as simple as the weather forecast is actually a complex model based on countless data points. today prediction models are critical to coronavirus planning koch 19 is still new and it's hard to anticipate how it will spread and whom it will affect models can give scientists government officials and doctors previews of how to stop the virus and save lives. welcome to

our current $900.00. and to some extent i've contributed to prediction models today by getting tested just like all the anchors here it's a precaution but those tests on individuals are costly a researcher in wonder came up with an efficient alternative in the battle against the pandemic rwanda's coronavirus task force relies on comprehensive contact tracing. to get an up to date picture of how much the corona virus has spread rwanda tests a cross-section of the population regularly using an ingenious strategy called pool testing. the brains behind the strategy is well firstly defun a professor at the african institute for mathematical science. if you go to the community and test people it doesn't tell you how many people actually infected because you can test everybody so you always sound poor and so to go from the

sample to the truth to reality you need models the calculations involve complex algorithms before has translated them for us into an example from everyday life. the idea of no importance thing is really simple so imagine that you have 9 cups of beans and you have to order one of those of us but bins. and you know that to which core positive but he was cool beans and based so you might find the. answer. to avoid this effort the mathematician resorts to a simple yet efficient trick he combines being samples from different parts if all the beans in this pool are good he no longer has to test each pot individually only if there are better beans in the sample must he perform it dition all tests the

principle can be applied any time groups are tested and it can be used to combat covert 19. in rwanda sets of 10 and 20 samples are combined and tested similar taney asli if the pool test result is negative all the subjects in the pool sample are indicated as not having coded 19 but if the pooled result is positive each sample is retested individually the advantages of their pulling out portions just to be just the cost spends today for the agence to do the turnaround time for the results and also to test a massively in the community also the group just. for the so does an advantage is for these if the virus is spread dramatically pooled samples test positive too often and retest in becomes costly in time consuming so far however africa has low number of cases compared to western

countries and the method is proving useful there. this is the purple for the african countries but not only african countries even for the roping countries since we developed this in the published. pulling up close tonight of people and so we have been approached by a similar countries ghana and kenya are now applying the strategy to mass testing in greece have also come from the u.s. and in britain the university of edinburgh is testing students with this method. all about is a lecturer in statistic in the department of mathematics at imperial college london welcome to our program and before we get into the nitty gritty of mathematical modeling just very very briefly what exactly is it that you do at your department. thanks for having me today so i am part of the empirical culture on the covert 19

response team and we've looked at you know various kinds of infectious disease models to inform on public health responses to the epidemic i guess the 1st and probably one of the most important pieces was wary. scenarios on what would prevent hospitals to collapse and not prevent hundreds of thousands of deaths in the population so there was the 1st one and we showed it so as resistance in general knocked out capping off non-essential services and will be fundamental to that later on we looked at the age groups that sustained yet the demick showing that it's primarily to 20 to 49 years to try to spread 70 percent of all transmission is occurring from those individuals with limited. contributions from school age children and more recently we looked at the spread of the wants in england and p. 100 cell and we show a popular ones have been at its. effect of 1.5 to 1.6 what transmissible

the current variance there harvests in the 2nd and when you say you look at all these things what exactly does this mean i mean talk us through the prices for example of what you've been doing in brazil. so we start by you know and allies in real real time data as it comes in and is reported so in this case it's a case data initially it was a case of data from from analysis hospital dates are just number of admissions a number of deaths burial dates are it sounds as you know it's been horrific actually and yeah that's a. and then you try to interpret it as data with mathematical models so these are. known in your morals are it's a little bit unintuitive to i to work with them it's not like i throw you a ball and you know where it lands so we really need

a small dose to help us understand what's going on and how do you translate those models that are not linea for policymakers to understand what's going on so that they can decide on specific missions what we show you know the fits to the data itself along with 95 percent credible and the votes to president certainty we show for costs you know various what if scenarios and there's no single forecast right. but the difference in areas what would happen if you know if mobility were to reduce in a population what you know and other things. and then based on that you know based on that communication very thick asian from several teams different analysis from different regions alternately decisions being made at a policy level. let's take a concrete example this year in germany and there's a lot of discussions right now politicians are talking about how to end the lock

down now if german chancellor angela merkel came to you and asked you what happens to the infection rate if we were to open schools and restaurants next week could you provide her with a model. you know. yes so that is what we've been doing that they are not they are out for the past year for the british government and it's just one aspect it's more than 10 or more league teams and institutions across the u.k. who come together in peace back into this and so it's. it's a very busy it's been a very busy period but i bet they actually do and taking you not giving advice you give them a model so they still have to sort of figure out what it means and make the right policy decision can you support them somehow to. maybe try to make authorities who have ever tried to really make the best transparent and easily accessible as possible so you know we give them graphs and they give timelines and projections

and conferences by having very similar instances from very different types of models and he also transparent what your assumptions that undergo mean when it underlined all these models all right so if you're expensive will these days certainly but when the pandemic is over if it's over one day what models would you like to work on what you know what i could not he was not the only infectious disease out there in the world and you know primarily working on a job b. . you know many other diseases are you've heard about aid and trends on the 1st cases no christian transmissions. already happened this year so there's no shortage of problems to twerk. i'm afraid you're right yes all of that at imperial college in london thank you so much for your time. searching cognitive gears now you'll see what i mean what derek. how much of

the population has to be vaccinated before we reach herd immunity. everyone wants to know this number which from the start has generally been estimated at roughly 70 percent of the population the problem is that pinning it down exactly isn't possible yet because there's still so many moving parts in this pandemic 2 of the most important factors that can have a major impact on herd protection are still big question marks the 1st is the extent to which people who've been vaccinated can still potentially catch and transmit the disease even if they never develop symptoms themselves the data we have so far on this aspect is quite positive evidence from a couple of larger studies now in peer review indicates that at least some approved

vaccines appear to help lower a recipient's chances of being a transmitter after being vaccinated may be dramatically the 2nd factor that plays a key role and how soon we reach her protection involves variance when the virus mutates to become more transmissible people who get it grow more contagious so they give it to more people on average and that makes achieving her protection more difficult another potentially problematic facet of this problem is that variance can also mutate in ways that lower existing immune protection to sars kovi to whether for those who've been vaccinated or for those who have had the disease so variants could turn people we thought were protected back into potential in factors

to. spike the imponderables many see falling case numbers and countries with high vaccination rates as evidence that her protection is already beginning to influence the course of the pandemic but we won't really know we have until we get there. and that's it thanks for watching.

where i come from we have to fire from 4 forests i was born and raised in a military dictatorship with just one to the shadow and if you just pay for us one official information as a journalist i have worked on the streets of many cantrips and there are all those are almost the same 14 source inequality a lack of the freedom of the press. go up should we can afford to stay silent when

it comes to the fans. the humans on seeing the microphones to hunt decide to put their trust in us. my name is jane paris and i work a d w. this is seen every news africa on the program today collective relief in nigeria all 279 girls kidnapped from their boarding school in some far a state have been freed by government saying a so-called repentance bandits helped secure their release. and the victims of the raging islamized insurgency in.