this is d.w. news live from berlin tear gas and shots fired on the border between greece and turkey greek authorities use force to keep out a surge of migrants they've spent days there after being told by turkey to free to go to europe also coming up super tuesday leaves 2 candidates at the top in the race to face donald trump in america's general election former vice president joe biden surges ahead of bernie sanders while those but more and mike bloomberg looks to reassess their fading campaigns plus demand for coronavirus testing kits is

booming around the world will find out why they're so crucial to keeping the virus in check. i'm carl aspen thanks for joining us there have been fresh confrontations at the turkish greek border between migrants seeking to enter the european union and police determined to stop them creak security forces have been using tear gas to prevent groups of migrants and refugees from crossing the land border they've made repeated attempts to breach the frontier in recent days thousands of people have been stuck in no man's land outside the turkish city of air dina since friday and the situation on the greek islands closest to turkey has also been deteriorating on lesbos long a flashpoint in the migration crisis. refugees and locals have been clashing with

police. for days they've been trying to break through. but police are standing firm lesbos has europe's largest refugee camp and greek authorities are determined to stop a 2nd wave of migrants from entering. there is also strong resistance to new arrivals from many of the island's longtime residents. we as locals stand up against this. is the lead man i mean we want to make it clear to the local authorities if the parliament and the government that we will not accept any new migrants in the cab and then met that national. some are taking drastic action to get their message across a new occupied migrant shelter was set on fire on tuesday. right wing

extremists even blocked entry to migrants and humanitarian aid during a visit to a greek turkish border crossing the leaders announced $700000000.00 euros in assistance still greece's prime minister called for more to be done. europe has not been up to dealing with my question question i hope this crisis will serve as a wake up call for everyone to assume responsibility. but there are no signs of that at the border where migrants are stuck in a no man's land unwanted by both sides. let's get more now from our correspondent she joins us from turkey just across the border from greece either to develop the developing situation where you are at the border what's happening on the turkish side. well as i'm it's one of the main the border crossing points between taki and greece and there have been some quite dramatic

scenes further away from me here at the border where hundreds of migrants are still trying to cross into greece into each you territory now we can't move any closer because turkish soldiers have sealed this area off they're not letting journalists in right now but according to the reports we're getting and we heard shots were fired earlier greek border guards have used tear gas again against refugees to keep them out there are some reports says something hot been fired from the takesh side as well it's a little chaotic as i mentioned and refugees in the area refugees my friends have been trying to cross they send us journalists covering the situation videos on what some. dramatic scenes actually the refugees are saying greek a border guards have fire. aired at them they say several people have been injured

and here on the turkish side we saw several ambulances tassel people have been injured and the situation that remains very tense it seems some dramatic scenes over there at the border. is it satisfied. so far. no i don't think so i mean prison edwin says strategy or ramping up pressure on europa by sending refugees to war the border as it seems has not worked out so far because e.u. leaders yesterday said they would stand by they would support greece they actually thanked greece for protecting the borders despite all the brutal methods greek border guards have been using in recent days against migraines and refugees a local government governor the local governor of this region here in turkey it was

at the scene a little early he accused of human rights violations and he also said turkey will keep its border as to europe open because he says turkey already hosts so many refugees it's at its limits and it can take in any more and that's the line of argumentation we hear from other turkish officials they say the e.u. is focusing on security and not on who you money tarion issues and they're turning a blind eye to the humanitarian situation the crisis in syria is a live where hundreds of thousands of people are basically waiting and seeking security from syrian regime bombings over there and this is what turkey has been warning about so it remains to be seen if they're going to keep the pressure on a what's going to happen here in the next days at the border we see there waiting behind. children want us all this chaos. trying to cross. many of them have been waiting

here for about 6 days now they came and the firm believe that this would be open but then they realize that's not true people have camped stayed day and night outside in the open in the cold families with little children they don't have enough to eat and nuff to drink they only have basically blankets to somehow you know protect them against the elements it's been very tough for them we've also talked to migrants here who say they made it to greece or then detained by greek border guards have beaten up their phones were being taken from them their money was being taken from them they showed us the bruises they have from these beatings and then they were sent back to turkey they told us and now they don't have even the money to get a bus ticket back to stumble or the other places where they came from now we actually also see buses here in the area offering rights back to istanbul for about . 12 euro so the situation is very uncertain we see people are going

back but still there are at least hundreds of people still waiting here at this border crossing trying to make it to the other side. of the turkish thank you very much for. our turning now to super tuesday and projections from that big day of primaries in the united states show former vice president joe biden taking the lead against the other democratic candidates for president now to clinch the party's nomination a candidate will need to secure at least 1991 delegates biden now has 453 for he won at least 9 of these super tuesday races so far but the race is not over yet for senator bernie sanders his 4 wins now on super tuesday put him at 382 delegates with super tuesday proof that joe biden's

campaign for the democratic nomination is alive and well just a few days ago the pressure the pundits and the credit campaign get. and they can't slap her are very very shiny said. was. our joy when he got to super tuesday are over well it may be over the other guy was the former u.s. vice president can now claim to be the front runner for the democratic presidential nomination exit polls link you success to strong support from african-americans as well as older and suburban fired his i'm a moderate myself so i think his message can reach a lot of people were in the middle reach both left and right by been a big fan of his since the obama administration working really that i. don't believe that. senator bernie sanders is by no means out of the

race for the democratic nomination just yet the nodded hard to tell you were the absolute confidence we're going to win the democratic nomination was. and where you are going to defeat the most dangerous president. is there history about this cutler. sanders went into super tuesday as the frontrunner he's particularly popular with young and latino version is that i think that bernie sanders has what it takes a as that of the people that i was hoping very would do better in some of the states it was a little exciting in the pressing at the same time to other hopefuls senator elizabeth warren and former new york man michael bloomberg performed poorly they're facing calls to suspend their campaigns and let voters choose between biden and santas super tuesday is an important date in the presidential election calendar but it only represents about one 3rd of the delegates that are up for grabs nationwide

the campaign now moves on to michigan and 5 other states holding primaries next tuesday 350 more delegates are up to be won. i think are let's get more now on super tuesday joining in the studio for one call here is us political analyst and professor at bard college here in berlin. what a day for joe biden i mean he one of these 9 states including some he had even really set foot in recently what was behind this big time success for i think 2 things the and they're related the 1st is that the middle lane got a lot less crowded a following the south carolina primary and a meek senator close but you are. both getting out of the middle lane those votes went to moderate candidates there as the moderate moderate candidate that's the bit the other thing i think what we did not see until really this week past weekend 72 you hours ago. your inning and the depth

of the desire for. an obama era restoration and that is represented by. joe biden he has played that melody and i think that at least among the democrats is a winning strategy for him bernie sanders also had a big night he won a few states including the big prize of the night california with lots of delegates it's looking like a 2 person race could sanders catch up at this point. in many ways it's like a sailing race once you sort of get ahead with the lead you just have to maintain your lead it's going it's going to be a lot harder for sanders from this point on i think we don't want to underestimate the importance of both bloomberg and warren and watch what they do because if we go into the party. convention without a majority. and go into

a 2nd round then suddenly 16 percent of the so-called superdelegates the party establishment will have a say and that looks much better for biden and for sanders well the next question was going to be you know if you're bloomberg are you born you see you see this pretty poor showing today do you think about dropping out. for 500. a $100000000.00 having american samoa and a lot of 3rd place finishes the only thing that i could really imagine that might play a strategic role for him is preventing a majority going into the convention of either candidate and being so to speak a kingmaker at the table and buying that with elizabeth ward it's very difficult for me to guess unless she is hoping to take votes from bernie sanders is it possible to say that here in europe europeans are rooting for anybody in this democratic race well let's just say compared to the president the current president

of the united states we are looking at a stable of european champions the only person that the europeans should be probably rooting for would be whoever has the highest likelihood of winning the next presidential election it's of rooting for a winner there i guess the u.s. political analyst over in color thanks very much to be here. or let's take a look now at some of the other stories making news around the world the southern u.s. state of tennessee has declared a state of emergency after suffering its deadliest tornadoes in 7 years at least 24 people died in the storms with the search for bodies still continuing worst hit were areas around the capital city nashville. u.s. forces have bombed taliban targets in afghanistan after the militants killed at least 16 afghan government soldiers in attacks north of the resumption of hostilities comes less than a week after washington signed a peace deal with the taliban. rescuers are searching for dozens of people missing

after landslides hit several cities in the brazilian state of south paolo at least 16 people are confirmed dead so far brazil's heavily populated southeast has suffered an intense rainy season this this year causing flooding and landslides. well turning now to the corona virus and some good news china is reporting a decrease in the number of new cases for the 3rd day in a row but the death toll in the country where the virus began is now in nearing 3000 in other developments italy's death toll has jumped by nearly 50 percent to 79 meanwhile iraq poland chile and argentina have reported their 1st cases of covert 19 and australia's largest supermarket chain is rationing sales of get this toilet paper after panic buying hit stores in recent days meanwhile criticism is growing of the u.s. government for failing to quickly implement effective testing for the pathogen

knowing if a sick person is infected with the virus is the 1st step in determining who needs to be quarantined or not support lots of testing method developed here in berlin and now being used across the world. determining whether or not someone has the corona virus isn't as simple and straightforward as it sounds the process generally begins when a patient complains of symptoms like fever or a dry cough the challenges distinguishing a covert 19 infection from the flu or other respiratory conditions because the symptoms are so similar testing begins with the swab sample usually taken from the mouth or nose although experts believe mucous coughed up directly from the lungs is a better indicator many of the various tests use a method known as the polymerase chain reaction or p.c.r. it works like this if a sample contains the corona virus the chemicals in a test kit begin to react with its unique genetic material and start copying it

over and over again the copies or tagged with the dye so even when low loads of virus are in a sample they grow more and more detectable with each new generation of copies. one such test for the corona virus was developed in berlin back in january by dr coast john tossed and his team you can take several hours to get a positive for a negative result. look at all recipe orders some specific ingredients that they will receive after like 2 days at the same time order this small a cool for us that they will also receive within very short time. and then they can start testing in the last few weeks the w.h.o. has sent some 250000 of to austin's p.c.r. kids to labs across the planet the means to detect the virus quickly will play a vital role in combating it effectively but in parts of the world like africa the

technology is still far from common and. derek williams was the author of that piece he joins me now in studio for more on coronavirus testing i mean 1st of all how big is the gap between the demand for these tests and the availability of these tests well that depends very much on where you are a china is has reported that they're now producing and carrying out upwards of one and a half 1000000 tests a day a day. a week a week in a week in the course of a week south korea is the would be the next country that has the most number of people there over 100000 people that they've tested so far they've been set up they've set up these drive through centers where you can actually drive your car up and you can get testing from your car which is actually helps cut down on the infection rate among the people who are actually conducting the tests. italy is upwards of 20000 tests right now but of course the other big. iran we don't really

have a lot of numbers there about the the implication would be that there's not a lot of people getting tested there and interestingly also in the u.s. as as as we heard earlier in the show there's also in the hundreds. well let's talk about the u.s. and what's going on there we heard about this major scandal right now involving testing for the krona virus in the united states right it's really the centers for disease control seem to have really really dropped the ball they've really bungled this pretty badly as it has to do with the way that it's set up the way that it set up in the states is that 1st the virus gets isolated by the c.d.c. and then the methods get developed by the c.d.c. and then they pass that along to commercial developers and and they've never made it past that 2nd stage yet they've had to sort of jump over the f.d.a. is not allowed to approve testing that hasn't come from the c.d.c. and so they couldn't use for example this test from berlin well they possibly could but the way that the it's set up in terms of the regulations in the states the

f.d.a. has to approve it they're now doing that the u.s. has said that by the end of next week there's going to be about a 1000000 test kits available in that they're going to be testing people there's some skepticism out there a lot of outrage in the american media a lot of frustration one of someone has caught the virus they've recovered from it could it test then later detect ok this is a person who who had the virus at one point there are these these this is testing for an active infection and what you're talking about as a logical test so that's a blood test that checks to see whether or not you have produced the antibodies antibodies in these proteins produced by the immune system whether you produce the antibodies that fit with a corona virus and so. that's something though that is important information to have in the long term for a number of different reasons not least because we believe that many people who have it have had very mild symptoms or might even be asymptomatic so being able to prove retrospective late that somebody has had it or not had it is going to for

example allow us to define things like the fatality rate in this disease but it's also going to allow us to do things like draw links between clusters of infections that was somebody that might have silently carried it from one to the other not even knowing that they were. so knowledge is power the more testing we can do them the more numbers we have the better but where do we go from there how do we start to use that information how do we continue to battle the spread of the corona virus what's been very interesting for me watching the discourse on this over the last couple of months is that we've moved away from the whole idea has been containment containment containment we need to do what we did with sars we need to shut it down at the source as quickly as we possibly can and then it just goes away but so the w.h.o. is continuing to say we need to contain this disease but the only place that it's actually that could arguably be said said to have contained the disease so far is china and of course they've done it with you struck me in measures that are not going to work in other parts of the world and so you have there also the question

is how long is this high heat is how long is it going to continue could there be a 2nd wave of infections with people bringing it back to china sometime in the near future and so we've moved away in this discourse away from the idea of containment towards what's called mitigation which is that experts are beginning to say i think that we have to accept that this is going to be endemic where do we go from here in terms of preparations and where do we move forward in the future in terms of of planning for this derek williams with science thank you very much. changing gears now and every morning a flying carpet of green descends over a busy area of india's chennai city thousands of wild parakeets coming in for their daily meal to the home of one man joseph circle the birdman of chennai he's a camera pair man he's been feeding a wild parakeets on his rooftop for more than a decade now and if they were team that begins early in the day.

early morning in chennai i j sips a car is preparing another breakfast on these terrorists. and these guests literally flock from far and wide to enjoy. the simple meal of so it dries chickpeas and grain is served to more than $8000.00 parakeets every day . after watching patiently from above the banquet can finally begin. on t.v. it's. beginning this has been going on for the past 25 years and actually birds like crows minus barrows and pigeons used to come but parakeet started coming after the tsunami in 2004. locals call in the good man of chan on top of that comes at a cost a $63.00 cages more then. all bets are for more than 65 kilos of

rice to these birds every day it's cost me 2000 rupees or about 40 percent of my income or somebody offers me money or rice i accept it because of. the daily feeding frenzy morning and evening has become a local attraction but for how much longer the owner of choice of sick house building wants to tear it down and has given him an eviction notice. he may stand to lose his hard but the man of china says he's more worried about who feeds thousands of physics friends when he's gone. a former judo world champion who fled iran has been cleared to compete for mongolia at this year's tokyo olympics saeed mulayam went into hiding in germany after a dispute with iranian authorities in last year's world championships he said he was told to deliberately lose a match to avoid facing an israeli compare. that or why was granted asylum in

germany before switching to mongolia he was scheduled to compete at the olympics in a refugee team. or sports in the german cup quarter finals on tuesday night defending champions byron munich defeated hosts shall go one nil to advance in the day's other fixture f.c. zot broken became the 1st ever 4th division side to advance to the semifinals after beating fortuna dusseldorf 76 on penalties the draw for the semi's will be held on march 8th and the remaining quarter final fixtures will be played later on wednesday. this is news and these are our top stories fresh confrontations on greece's border with turkey greek police have again used tear gas to prevent migrants and refugees from crossing the country's land border and on the island of lesbos migrants have confronted police on the waterfront after disembarking boats from charity. primary elections in 14 u.s.

states have made former vice president joe biden and senator bernie sanders the clear front runners for the democratic presidential election biden holds a slim slim lead in delegates and one more states sanders is projected twinned california. italian officials say the country's death toll from the corona virus has risen to 79 and that's a jump of nearly 50 percent in just one day over 93000 people have been infected worldwide with over 3000 deaths and all. the taliban have targeted afghan government soldiers in overnight attacks north of conduce in retaliation the u.s. military carried out airstrikes against the militants the violence follows washington's signing of a peace deal with the taliban over the weekend. this is news from berlin for more follow us on twitter or check out our web site s d

w dot com. or that's all for now d w business news next with your hard l. 1st reminder to check out our website d w dot com you can find all the latest news and information 247 or follow us on twitter at d w news i'm carl kasell thanks for watching. good .

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