professor sir terence stephenson is the chair of the health research authority. ould be better called a natural history study. you're quite correct that young, healthy people who've given consent are going to be given a very small dose of the virus to see how much virus it takes to infect someone. and then once they're infected, what happens? how long's the incubation period? when do they start becoming infectious? if they're completely asymptomatic, can they still transmit? so, this is a study to learn about covid infection. 0nce that's been done, researchers could come back to the health research authority with another application to then start studying vaccines or drugs orfurther analysis. but at the moment, this is a study looking essentially at what happens if you give the covid virus to a group of 90 healthy 18—30—year—olds. what happens to it. why is it that age range? what's the significance there? it's crucial that we do balance potential benefit against potential harm. this is a virus that we know all of us, the figures that you just mentioned at the beg

the health research authority _ this is absolutely safe? unteers and laypeople, members of the public, and experts in vaccines, biases and statistics and ethics. they will have reviewed this very carefully, thatis have reviewed this very carefully, that is the hope it would have gone through. they would not have approved it were it not given this approval. approved it were it not given this a- roval. , , .. , approval. the benefits, the key thin . approval. the benefits, the key thin we approval. the benefits, the key thing we all _ approval. the benefits, the key thing we all want _ approval. the benefits, the key thing we all want to _ approval. the benefits, the key thing we all want to talk- approval. the benefits, the key thing we all want to talk and i approval. the benefits, the key l thing we all want to talk and hear about — what for you are the key things that could be learned through this trial? lets things that could be learned through this trial? , , . ., , this trial? lets be clear, this isn't yet _ this trial? lets be clear, t

south africa while it's not yet been approved elsewhere south africa's health products regulator authority has allowed its use for research but many people including in the health service remain skeptical the reality is that there's very different levels of understanding is obviously a lot of fear associated with the vaccine because of the confusion with the initial one been approved and then moving on to another bechstein so staff have been very confused inferi south africa suspended its planned rollout of the astra zeneca vaccine a local study had shown it didn't provide enough protection against the new variant once health and essential workers and of honorable vaccinated the rollouts expect is to be extended to the general public and getting everyone on board is where the government may face its greatest challenge it hopes to vaccinate 2 thirds of the population with about 40000000 doses of vaccine to achieve the so-called herd immunity but it may be many months before south africa manages to reach their target for me to al-jazeera. well japan has now kicked off its covert 1000 vaccination drive just a few months befo

south africa while it's not yet been approved elsewhere south africa's health products regulator authority has allowed its use for research but many people including in the health service remain skeptical the reality is that there's very different levels of understanding is obviously a lot of fear associated with the vaccine because of the confusion with the initial one being approved and then moving on to another bechstein so staff have been very confused inferi south africa suspended its planned rollout of the astra zeneca vaccine a local study had shown it didn't provide enough for to. action against the new variant once health and essential workers and of honorable vaccinated the rollout is expected to be extended to the general public and getting everyone on board is where the government may face its greatest challenge it hopes to vaccinate 2 thirds of the population with about 40000000 doses of vaccine to achieve the so-called herd immunity but it may be many months before south africa manages to reach their target for me al-jazeera. japan has kicked off its covert 19 vaccination drive just a few months before it's

behind them has been at the focus of a lot of research for decades but but this is the 1st time they've received widespread approval from health care authorities unlike that seems based on traditional platforms of ones that for example use inactivated versions of the virus the biotech pfizer vaccine leads to an immune response in the body by delivering information in the form of a special molecule messenger r.n.a. m.r. in name only kills are our single stranded chains of what are called nucleotides that fulfill a very important function in cells they're kind of the blueprints for making proteins and act as messengers between a cells headquarters in the nucleus and it's protein building factories out in the side of plasm and hence the name but the protein these new m.r. in a vaccines in code for it isn't a human one it's a protein made by the corona virus and when that m r n a is injected it causes your cells to begin making that viral protein and that viral protein provokes an immune response just as if you caught covert 19 sending in the pretty simple. quick to produce m.r. and a code molecules to make these complicated proteins and getting t

my view is that there has been little focus on our public health authorities to research, to implementntevidence-based comprehensive strategies to address what we are seeing with regards to homelessness. i think we are going to see more homelessness as a result of this pandemic. in your role, if you are confirmed as surgeon general, what do we need to do to be raising the awareness. not only becoming more aware but actually working to address, i believe these significant health issues as they relate to homelessness. >> center i'm glad to raise this. with all this in regards to health, housing and homelessness is one of the most powerful. remember et cetera, or the first patients i cared for that was homeless was as a medical student at the time. i'm never talking to the patient as they're being discharged as the medications they needed to pick upp from the pharmacy and the three follow-up limits they need to have. at some point i realize how foolish i was because their primary concern was where they're going to sleep that night. and all of those other issues when they're going to follow

behind them has been at the focus of a lot of research for decades but but this is the 1st time they've received widespread approval from health care authorities unlike vaccines based on traditional platforms of ones that for example use inactivated versions of the virus the biotech pfizer vaccine leads to an immune response in the body by delivering information in the form of a special molecule messenger r.n.a. m.r. in a molecules are single stranded chains and what are called nucleotides that fulfill a very important function in cells they're kind of the blueprints for making proteins and act as messengers between a cells headquarters in the nucleus and it's protein building factories out in the side a possum hence the name but the protein these new m.r. and they vaccines in code for it isn't a human one it's a protein made by the corona virus and when that m r n a is injected it causes your cells to begin making that viral protein and that viral protein provokes an immune response just as if you caught covert 19 sending in the pretty simple. quick to produce m r n a code molecules to make these complicated proteins and getting the body to d

behind them has been at the focus of a lot of research for decades but but this is the 1st time they've received widespread approval from health care authorities unlike vaccines based on traditional platforms ones that for example use inactivated versions of the virus the biotech pfizer vaccine leads to an immune response in the body by delivering information in the form of a special molecule messenger r.n.a. m.r. in name only kills are single stranded chains of what are called nucleotides that fulfill a very important function in cells they're kind of the blueprints for making proteins and act as messengers between a cells headquarters in the nucleus and it's protein building factories out in the side a possum and hence the name but the protein these new m r n a vaccines in code for it isn't a human one it's a protein made by the corona virus and when that m r n a is injected it causes your cells to begin making that viral protein and that viral protein provokes an immune response just as if you caught covert 19 sending in the pretty simple. quick to produce m.r. and a code molecules to make these complicated proteins and getting the body to

behind them has been at the focus of a lot of research for decades but but this is the 1st time they've received widespread approval from health care authorities unlike vaccines based on traditional platforms of ones that for example use inactivated versions of the virus the biotech pfizer vaccine leads to an immune response of the body by delivering information in the form of a special molecule messenger r.n.a. m.r. in name only kills are single stranded chains of what are called nucleotides that fulfill a very important function in cells they're kind of the blueprints for making proteins and act as messengers between a cells headquarters in the nucleus and it's protein building factories out in the side a possum and hence the name but the protein these new m.r. and they vaccines include for isn't a human one it's a protein made by the corona virus and when that m r n a is injected it causes your cells to begin making that viber all protein and that viral protein provokes an immune response just as if you caught covert 19 sending in the pretty simple. quick to produce more and a code molecules to make these complicated proteins and getting th

behind them has been at the focus of a lot of research for decades but but this is the 1st time they've received widespread approval from health care authorities unlike vaccines based on traditional platforms ones that for example used in activated versions of the virus the biotech pfizer vaccine leads to an immune response of the body by delivering information in the form of a special molecule messenger r.n.a. . emira name only kills are single stranded chains and what are called nucleotides that fulfill a very important function in cells they're kind of the blueprints for making proteins and act as messengers between a cells headquarters in the nucleus and it's protein building factories out in the side applies them and hence the name but the protein these new m r n a vaccines in code for it isn't a human one it's a protein made by the corona virus and when that day is injected it causes your cells to begin making that viber all protein and that viral protein provokes an immune response just as if you caught covert 19 sending in the pretty simple quick to produce m r n a code molecules to make these complicated proteins and getting the body

an armed suspect was taken into custody but authorities have not identified a motive for the killings. world health organization experts have visited research center in the chinese city of new han as part of their investigation into the origins of the corona virus bendemeer who hunt is where the virus was 1st thought crossed over from animals to humans although china has disputed this. stuff at dozens of hospitals across myanmar have walked off the job to protest the military coup which defacto leader also in sochi health care workers accuse the army of putting their interests above coping with the coronavirus pandemic also on tuesday crowd stage the 1st widespread protests. since the coup demonstrators banging on pots and pans cold for soup cheese release and the recognition of her victory as of the 1st election. for more now we can speak to journalist dave group who's been covering the country for several years he joins us from kuala lumpur or can you tell us about the protests yeah well that's quite a stand last night these were really where we started seeing the 1st signs of civil disobedience from the public as you said people were hon

medicines regulator says the latest research shows that side—effects from all approved vaccines are minor and do not last long. meanwhile, spanish health authoritiesccine to those under the age of 55, that echoes an earlier decision by a growing number of countries which have restrict the distributing of the vaccine despite the european medicines agency approving its use for all adults late last week. stay with us here on bbc news. still to come... a timeless talent. a french piano is too has been playing for a long, long time. this is the moment that millions in iran had been waiting for. after his long years in exile, the first hesitant steps of ayatollah khomeini on iranian soil. south africa's white government has offered its black opponents concessions unparalleled in the history of apartheid. and the anc leader, nelson mandela, is to be set free unconditionally. three, two, one. a countdown - to a critical moment. the world's most powerful rocket ignited all 27 - of its engines at once. and apart from its power, it's this recycling of the rocket, l slashing the cost of a launch, l that makes this a breakthrough in the business| of space trav

learning more every year about how little our health authorities actually knew when they told us what to eat and drink. here's another example. new research from iowa state university recommends daily consumption of red wine, weekly consumption of lamb. but here's the headline. the research shows that cheese is "by far the most protective food against age-related cognitive problems even late into life." it's a prophylactic against alzheimer's, so cheese doesn't just age well. it also helps you to age well. as a public service announcement we've crafted a new advertisement about cheese. >> are you fed up with stringent diets that don't give you parmesan. don't be blue w. you're not provolone. >> america's favorite food is, in fact, nutritious. >> new studies show a steady doze of cheese will leave you shredded and reduce cognitive decline. these people aren't crazy. they are healthy. don't swiss out. >> tucker: okay. i haven't seen that pretty funny. who to talk to about cheese? world renowned cheese head and nfl legend, joins us. we're so grateful you're on the show to talk about cheese. did this surprise you? >> nothing in today's world

health organization just gave oxford the green light for its vaccine. it authorized emergency approval. the move could trigger the delivery of the doses to country around the world. researchersaccine is about 84% effective against the old strain. the pfizer is the only other one approved by the un agency for emergency use. >>> new video out of columbia where 50,000 doses just arrived. . >>> the president is preparing for his first public trip since his inauguration. he is expected to answer questions from a socially distanced audience of democrats, republicans and independents. for all the latest just download the app that gives you easy24-7 access. >>> congress is moving forward with a more in depth investigation after the united states southbound ate voted to acquit former president trump of inciting the capitol attack. their next step, creating an independent commission to investigate the attack. the idea is gaining bipartisan support with even some of the former president's allies. >>> new, a former senator who lost a runoff in georgia last month is planning a potential come back. republican david perdue has filed paperwork to be a senate candidate in 2022. he lost in ja

authorities are not worried at this point. but more research needs to be done about this. but again, it is certainly a reminder of what we have heard from healthials that the longer people have to actually be infected with this and the longer the virus remains in people's bodies, the higher chance that the virus will have to mutate. and now this is just the latest variant concern here in new york city, jim and poppy. >> thank you, polo, very much for that reporting. >>> joining us to discuss dr. mark mcclennan and also an independent director on the johnson & johnson board. a big week for the j&j vaccine. we'll know in a few days whether or not the fda gives it sign off. i'm a little worried about that we may be confusing people on this variant if you will --. from what you understand from the columbia researchers, it hasn't been peer reviewed but it is a strong team looking at this. are they saying your bodies may not fight it off as well or vaccines like j&j, pfizer and moderna may not be able to fight it as well. >> there are concerns about both. one concern is that for people who have been vaccinated, if they were vaccinated against a litt

health authorities say the first vaccines will go to at-risk residents but not medical personnel since there are not enough doses. meanwhile, el salvador and south africa have also begun vaccination campaigns. new research shows top executives at pfizer, moderna, merck, and other vacne manufacturers sold nearly $500 million of stock last year as the value in the companies soared due to the pandemic. the fbi and the u.s. attorney in brooklyn have opened a probe into new york governor andrew cuomo for covering up thousands of deaths in nursing home during the pandemic. more than 15,000 nursing home residents died in new york -- nearly double what cuomo had initially disclosed. meanwhile, democratic new york assemblyman ron kim has revealed cuomo called him at home last week to threaten him for speaking out about issue. kim said cuomo threatened to "destroy me." this comes as new york lawmakers prepare to vote next week to strip governor cuomo of emergency executive powers during the pandemic. democratic lawmakers are introducing president biden's immigration plan to congress today. the legislation includes an eight-year path to citizenship for the nation's 11 million undocumented immigrants. some immigran

who authored the framework for the equitable allocation of covid-19 vaccines, which was published last for. -- last fall. next, the infamous abigail echo heart, the chief research hospital at the health board and the director of the urban health institute. she will share the experience of americans of the vaccinated communities in vaccines. she will a -- was also a member of the committee for equitable allocation of the vaccines for coronavirus, and is a co-author of the group's report. next, we'll hear from mr. frankie miranda, who is the president and chief executive officer of the hispanic federation, who supports latino communities around the countries, and will share the experience to those communities in the axis of coronavirus vaccines. finally -- access of coronavirus vaccines. finally, my friend has been a close partner in our effort to deliver quality health care for medically underserved communities. as chief executive officer of the south carolina primary care association, she has distinguished herself at the national level and state as an advocate for community health centers, and as someone who knows the needs of the communities who were seeking to focus -- who we're se

distribution, contact tracing and public health data and for structure improvement and over 23 billion to the biomedical advanced research and develop meant authority for the research development and manufacture of novel vaccines, tests and treatments. $178 billion for healthcare providers on the front lines of taking care of patients with covid-19. this investment in partnership with the private sector has led to unprecedented development of innovative vaccines and treatments coming to market faster than we ever thought possible. speed is one of the most ambitious and successful undertakings in american history with two life-saving vaccines not authorized by fda and a third hopefully will soon to follow. there is light at the end of this dark tunnel. however, our hard work is not yet complete and vaccine distribution is ramping up but we must ensure states have the resources and the flex abilities they need to successfully immunize as many people and wanted and meet the unique healthcare needs of each individual pop elation. we heard yesterday in the oversight and investigations subcommittee from west virginia which has relied on community pharmac