Joe biden has cemented his frontrunner status in the democratic race for the u. S. Presidency hes won the big prize of michigan in the latest primaries bill this super tuesday to the former Vice President also took in mississippi and missouri 3 more states are being counted its a boost to biden whos extended his lead of a month senator that makes and its i want to speak to you from philadelphia where we announced turkey and p. At the front we did our final note. To all those who have been knocked down all those have been counted lets be frank this is your Campaign Just over a week ago many of the pundits declared that this can be used. Now were very much alive. Thank. God has more now from detroit and michigan black voters here in the state of michigan came out in overwhelming support for joe biden that was very clear he also based on exit polls seem to win a lot of the working class white voters in michigan as well which was pretty cool you add all of that up and thats what you saw with this pretty dominant win by joe biden here in the state of michigan its been a terrible night for Bernie Sanders this were at right now was supposed to be a Bernie Sanders sanders Victory Party it clearly turned into nothing like that a lot of dejected people here that were his supporters and volunteers this was supposed to be the night that Bernie Sanders revived his campaign and regained momentum neither happened of course speaking to some of his Bernie Sanders supporters here they werent in much of a mood at this juncture to talk about supporting joe biden they still some of them say that they still want to continue on there waiting to hear from Bernie Sanders to see whats happening in the future what hes going to do bottom line though i think its going to be hard at least initially for joe biden to win over a lot of Bernie Sanders supporters but listen its still its still very raw at this point the results are still coming in but bottom line this was an absolutely terrible night for Bernie Sanders. U. S. National guard troops are being deployed to a suburb in new york city now thought to be the epicenter of a major coronaVirus Outbreak you richelle has been sealed off as has the largest known plaster of cases in the u. S. Troops will be sent in to help disinfect the areas and to quarantine people in the u. K. A Health Minister has become the 1st british politician to test positive for corona virus doris is now in isolation its reported she met hundreds of people in Parliament Last week and attended an event with Prime Minister barak. Meanwhile the slowdown of cases continues in china who by a province the epicenter of the outbreak is reporting just 13 new cases and speak now to sarah clarke who is in hong kong for us sarah chinas local transmission is slowing down but its now keeping an eye on cases imported from elsewhere what can you tell us. If that is the case the numbers certainly seem to be stabilizing across mine and china and the downward trend in not just the infections but the death numbers also continues looking at choose say the figures that came out from chinas approval to the Health Commission there were 22 deaths reported on tuesday and 24 new cases of the current a virus infection but as you mentioned of the new infections a number of these have been imported into china there were travelers coming from italy and the United States the biggest concern now china has is that the importation of these fires is that so they are now focusing their efforts on the quarantine restrictions and tighter regulations on arrivals coming back in to Mainland China so basically the region of weve got to number of closures of the Quarantine Centers is that these are the hospitals that were set up temporarily to treat the crowd of ours infections or the increasing number of cases in the who by province theyve now been close and this is an indication that china is trying to spread to the rest the world that they are getting themselves under control yesterday on cheese on tuesday we had she didnt paint chinas president he visited hand in who by province for the 1st time and the signal he was trying to get to the rest of the world was that china is fighting this epidemic and doing a good job sara are we likely then given all of that to see a return to normal life in her any time soon is it likely that well see the lockdown lifted. Well state media is suggesting that the government is considering rolling out a basically its a mobile a Monitoring System across the who by province of course were talking about 60000000 people in that province that have been locked down for months now thats just a live in 1000000 alone and now this particular Monitoring System its based on the individual Residence Health status the residents there will be tested and if they considered it in the green category they considered low risk and some partial travel would be allowed now its a partial lockdown and as i should say its still the government still considering this it hasnt happened yet there are some local reports suggesting that the traffic ban has been lifted and the public transport have resumed thats not the case state media is now saying the transport ban is still in place and theyll be no traffic to get allowed to go out on the roads again in the who by province but i can say that 24 minutes apart these regions and provinces across china they have lowered their Emergency Response level with their Emergency Response team or to a lower level and that certainly an indication that from china that theyre starting to curb the spread of the corona Virus Outbreak thank that sarah clarke there live from hong kong. Leaders have pledged to do everything they can to protect the blocks economy from the corona Virus Outbreak is setting up an Investment Fund of up to 28000000000. 00 to support health care and Small Businesses cases of coronavirus have been reported in all 27 Member States with the forefront of the crisis paul brennan reports. A pound European Crisis would normally see e. U. Leaders racing to meet in brussels but concern about possible infection meant an emergency Video Conference instead the outcome of this rare Virtual Meeting a multi 1000000000. 00 european Investment Fund to support Health Care Jobs and Small Businesses. We will bring forward a corona response Investment Fund directed at the Health Care Systems directed at as a s m es and as a labor market at the labor markets and other vulnerable parts of our economies the instrument will be sizable and reach 25000000000 euros quickly all 27 e. U. Nations have now registered the presence of the virus and theres a keen awareness that the crisis in italy may happen elsewhere for the next 3 weeks at least 60000000 italians will be encouraged to remain behind closed doors as much as possible with restrictions on travel and Group Gatherings sure to affect their daily lives few will go to work none will go to school or university or will hope that if they get the virus they can recover at home without having to make use of italys vastly overstretched Health System the costs a clear from the tourist sites roads near empty and impressive deserted how sustainable is all this for a country already on the edge of recession how effective are these measures anyway we cant necessarily say what happens in one country always ups and happens in another country but there are really really important things that china has taught us they had an enormous outbreak vast numbers of cases and they took very very strong measures when you look at their epidemiological it was going up like this the numbers and then it starts to flat when they took those actions and has come down very very steeply and yes we want to see that happen in other countries. After its only frances europes next worst affected country president mccrone urged calm but said the countrys epidemic is only just beginning france and germany have been relatively restrained in the measures theyve imposed so far some School Closures and restrictions on Sports Events and public gatherings spain has closed schools in the capital madrid and suspended its lower house of parliament after an m. P. Tested positive and greece has closed all schools and universities for 2 weeks you are now taking care of the children and the grandparents who are the people with the highest risk of things get complicated because we have to combine our personal life with life its complicated everyone must prepare to incorporate coronavirus into their daily lives now its not easy if youre the Prime Minister of the netherlands who announced an official policy of no handshakes before promptly leaning over and shaking hands. Oh. Paul brennan aljazeera. Around reported 54. 00 new coronavirus deaths on tuesday as the highest single day toll since the outbreak started there iran is one of the worst hit countries outside china with 291. 00 deaths and more than 8000 confirmed cases. Where the race is on to trial a vaccine for the corona virus experts say developing a vaccine at the speed required will cost 2000000000. 00 the World Health Organization says scientists are working on around 20 covert 19 vaccines around the world several labs have prototype vaccines which the trialing in animals human trials are due to start in april if successful back same could be widely available by early next year one bar tree in london is calling on volunteers for tests participants will be infected with a type of coronavirus paid the equivalent of just over 4 and a half 1000. 00 in quarantined for at least 2 weeks. 5 oclock is an associate professor and sat in that microbiology at the university of reading in the u. K. He says even if scientists come up with a vaccine it will have to be modified quickly as the virus mutates searing that. They are animals experiments the Animal Studies give positive results then thats when they will move into 2 to humans and there will be a number of ways of doing that they could. Immunize mass population tissue while theyre at the challenge from the corona virus aviation naturally into munity and see how many people get it as opposed to a group that are treated perhaps with a perceived oh well they can experimentally infect people which is that what youre suggesting with a 4000. 00 payment where people really be affected experimentally wit a coronavirus and it will they will then see whether those one of those vaccines protects against that experimental infection there is the possibility that this fact this virus will mutate that it will change and that will end up having to have different versions as time goes on the vaccine towards what is essentially this virus thats essentially what we see every year with the flu vaccine so its not without precedent its got to be able to produce enough of it and distribute it easily enough and its also got to be protective full of sufficient length of time its no use giving people a backseat that only gives them a short lived very transience immunity. Still ahead on aljazeera police in venezuela use tear gas against protesters trying to oust president Nicolas Maduro. Refusing to give up the fight to make the protesters trying to force out gimmies president. Hello theres been plenty of dust blowing around recently with the strong winds and particularly in egypt you got to get the impression from the speed of that cloud that the air is drifting around quite a lot but drifting would be a better word now for the most part in iran abia but thats not true further west in libya you just see on the edge of your chart there the northerly breeze the cloud in the sherry right now its a developing area of low pressure spreading eastwards into egypt 6 a horrible day to be honest to stay in a good part of northern egypt with the wind the clouds and the rains are flooding seems quite likely its all going to move nice general direction hasnt got there yet so 27 entire hard and quiet weather 30 in baghdad in what looked like increasingly cloudy skies and most of iran is looking quite with still potential for rain or snow up in afghanistan in Central Africa tropical after the showers are getting big and drifting slowly north but the still potential of Developmental Systems around madagascar remarkably tropical soccer name rishis for example still in the season over land there the showers are pretty well scattered from Lake Victoria westwoods the congo and angola seem to be good focuses but more to your congo than anywhere else this is exactly as it should be for this time of year. In 20 foot teams and al jazeera and vesta geisha and revealed how anger and fear feel be m. Bone a crisis that ravaged west africa we asked our lives they didnt allow you to us with a knowing we are dying 3 years on we speak to the filmmaker the one thing that spread a bola and caused the devastation on a sphere that was born out of ignorance rewind liberia living with a bow on aljazeera. There watching aljazeera a reminder of our top stories this hour joe biden has cemented his frontrunner status in the democratic race for the u. S. Presidency the former Vice President has won the big prize of the nice michigan as well as mississippi and missouri day of primaries and 6 states. U. S. National guard troops are being deployed to a small city in new york state to help combat coronavirus new rochelle now has the largest pastor of cases in the u. S. These 29 people have died nationwide with more than 800 infections. E. U. Leaders have paid to set up a 28000000000. 00 Investment Fund to protect the flocks connally from the corona Virus Outbreak it lays at the forefront of the crisis and has its whole population of 60000000 on lockdown. Security forces and venezuela have dispersed an antigovernment march led by Opposition Leader juan quadro he called on his supporters to revive a campaign to oust president Nicolas Maduro manuel of hello has the details. Police fired tear gas of demonstrators in caracas on tuesday the demonstration was organized by venezuelan Opposition Leader of one going door to. Door attempted to negotiate with police who blocked demonstrators from marching to Venezuelas National Assembly building. Mobilization social action symbolic acts of protest overwhelming protest actions with everyone united today in the fight for a free venezuela this is ben as well as moment thousands attended the demonstration in the venezuelan capital to protest against worsening Economic Conditions in the country and all the time and to get him off well yeah well basically we want the whole world to see whats happening in venezuela which is a very critical situation with our production without food without medicines the country totally paralyzed and all the countrys economic sectors. At the United Nations in geneva the u. N. High commissioner for human rights michel but so the situation in venezuela has worsened in recent months. Since my last update on the human rights situation in venezuela political tensions and acts of violence by Security Forces and government supporters against opposition parliamentarians have continued. A separate rally was convened in downtown can act as in support of venezuelan president Nicolas Maduro. The latest political tensions in the south american nations stem from a growing violence against members of the as well as political opposition including the arrest of several Parliament Members according to the latest updates from the un some 4900000 people have fled venezuela as a result of the prices. Below. Turkey says its agreed with russia on the details of a jointly a patrolled buffer zone along a strategic highway in syrias if the province designed to ensure a cease fire holds the m 4 highway connects the government stronghold of the takia would serious largest city of aleppo turkey says it will patrol 6 kilometers to the north of the highway and russia will patrol the Southern Side zone is hoped to keep apart the russian backed Syrian Forces and rebel supported by turkey after months of fighting. There have been more demonstrations in guineas capital conakry of concerns president alpha conde will seek a 3rd term in office the west african country is being hit by rolling protest since mid october. Reports. Another day of fighting against capital Security Forces in downtown clinic we fired tear gas at protesters he responded with rocks. We are protesting so that the