we've got some hot tips for your bucket list. ah, magic corner hot spot for food, and some great cultural memorials to boot w, travel. we go ah, there is still many questions surrounding covey. 19. we know that some people are at particular risk, while others never seem to catch it at all. but we don't know why. welcome to walk over 19 special. in china attempts to control the virus with strict lock downs and homegrown vaccines. that cheap mixed results. while garner struggles with vaccine hesitancy, rwanda is building a vaccine factory. but 1st,

let's look at why many people never develop symptoms. we spoke with one of the researchers who discovered the ami con variant. ringback we've all had stories of health care workers who worked for mansell years and coded 19 wards and apparently never caught it, or of families where every one came down with a virus dooming isolation except one member. some people just don't seem to get a disease. we still have no way to predict who might have this a parents, superpower. i think the 1st factor is, is basically is chance so, so, i mean, they can have luck on can be unlucky. and i think i won't cannot, you know, mom should not underestimate. but so of course the question is, you know, that attitude and i think it is probably a multifaceted phenomenon caraway's, anyone can lower their risk of contracting caving 19. you can reduce your exposure by wearing an effective mask in indoor public spaces,

for example. and vaccines also have a powerful protective effect because they stimulate the body to produce antibodies against the virus. at least a few months that could provide strong immunity. immunity that will be used by vaccination, and or naturally in fiction, having survived in fiction or a combination of both which we have seen more and more. the question is, are there any other infections, particularly with other types of corona viruses, that would leave one? someone immune, it's not a factor, possibly also playing a role in at least some people who appear resistant to coven 19 infection. some studies indicated does that previous exposure to one or more of the 4 related corona viruses that only cause cold like symptoms and humans? might provide some protection infection with those largely harmless viruses

causes the body to form long lived immune cells called t cells to recognise and send off future invasions of them. and at least in some people, those t sounds might also recognize close vine relatives like stars katie to the phenomenon it's known as cross reactivity. crossway activity refers to similarity between different agents. and of course, if they're all current of our system, one would expect them to have similar structures in the form of, of other proteins that will initially immune response. and if the structures are diff, a similar between different viruses, it can lead to cross community. and that it's a very common phenomenon. cross reactivity could explain why some people can fend off coded 19 for at least a while. and for a select few, they might even be

a more permanent difference. some scientists think a small sub group of people could be immune to infection with sounds crazy to entirely if the dna in their cells carries genetic factors that we haven't yet discovered. we've seen this kind of genetic resistance before. we know the phenomenon of genetic resistance, again, certain factors. a famous example, if sickle cell anemia which confers resistance to via my area a comes at a high prop if you could tell me, can, can cause crises and needs to be treated in its own right. another genetic variation that was discovered about 25 years ago gives protection against h i v i, the infection is such or at least progression talk towards 8. finally, thanks. so we know such examples, but they're very difficult to unravel in the, on immunity to soft kennedy to could hypothetically occur. for example, in people use genes cause them to produce an altered version of faith to

a protein receptor on the outside of cells that the virus uses to break in. so if the a to in some people is different in some key way, but could prevent the virus from latching on. effectively preventing the person from being infected. studies are looking at a range of different possibilities. the main purpose of such studies is to were elucidate the mechanisms and, and hopefully in the end, come up with some a strategy like a drug or something like that that would exploit it. fraud prophylaxis or for therapy. true genetic community, if it exists, it's likely pretty rare. experts haven't, will get out. china has tried to get the pandemic under control with a 0 cove its strategy of strict locked downs and vaccinations. but it's only using homegrown jobs like sign of i. none of which i am on

a vaccines which have proved to be the most effective elsewhere. now they jane is getting ready to upgrade its own m. r. any vaccine. so routine is approach to look dan's change to helping every one live a healthy lyles and could be ready to market. soon. most people in china have all read more. corona virus vaccines are currently under development. her she, us, we'll do a piece with the west. china didn't want to become dependent on the west, beyond tech, together with the chinese partner, folsom and shanghai submitted an application for approval of its m r in a vaccine in china. but it hasn't been fully processed or granted to this day. so into bob white, it will get to us to shut the phone. peon. al palmer is a chinese policy expert. he says it's this national pride in combination with the miscalculation omicron could be contained by china's sarah cove. it strategy that

have led to the countries current problems must testing and hard locked downs have impacted china's economy and lead to growing discontent amongst the public. sheila article next right now, china's problem is that despite its relatively high vaccination rate, the protection provided by its current vaccines is relatively low against omicron. and with some very alicia. and also a fairly high portion of the older population is either not projected through vaccinations or not enough cushions long sheets as compared to some other wealthy countries in the region. china's vaccination rate for people over 60 is still relatively low standing at around 82 percent when causes usa will not often call people. and of course, it's precisely this vulnerable group of the elderly or that china jumps to protect

the chinese government as long touted that it takes projecting lives of this pandemic. more seriously than the u. s. government does, for example, board there for items were considered to be more important, but at the cost of many lives on board. now with its 1st domestically made m r renee vaccine and site will china change coals? political experts say not yet. they only see that happening next year after tea jen paying has secured his 3rd term as president i'm to religious. thank you now is convinced even the current chinese vaccines provide good protection against cove at 19 as long as 3 doses are administered. so an m r and a vaccine wouldn't change the country's basic approach when everybody's vaccinating . let people tell you just like now the vaccinations and la city seems like

a week on getting there last at the janet ball is not causing more. so maybe even that is the case, that's still the chan from now. all of them, i have the people to relax. but for now, it looks as though even getting its own m. o. rene vaccine went fundamentally changed china's coping policy. i do you have any questions on cobit 19 of science correspondent derek williams. how fiance's, based on the latest research and analysis, send an email to covey producer at d, w dot com. this week one view i wanted to know, will we need annual distance against kind of 19, in the future? oh, any prediction that anyone makes at this point on this question is going to be speculative because we just don't know how much more the virus is going to change in the future. and that of course,

will be key to how long vaccination defences remain robust. but i definitely think that it makes sense to step back for a moment and maybe think about our goals, um, what the vaccines really have to do to be considered successful and, and what will we just really like them to do? because those are 2 different things, and they'll ultimately decide whether we think yearly boosters are a good idea in the future or not. um, so let's look at what a vaccine kind of has to do. first, at a bare minimum, i'd say it should keep cove at 19 from killing pretty much every one and also provide significant protection against getting severely ill to at least the vast majority of people who receive it. that protection should also last more than just

a few weeks or a few months right now in this our micron phase of the pandemic. that's kind of the problem. vaccines are preventing most severe disease but, but some people are still catching cove at 19. even after being recently booster, which is why health care authorities and many places are now recommending a 4th shot, especially for the elderly or for the immunocompromised, reaching those simple benchmarks on what a vaccine has to do. hands on a few factors, especially how long lasting and robust of an immune response, the vaccine evokes and the average recipient. but also how quickly the virus evolves to get around that. what recipients would also really like for a vaccine to do, of course,

is to prevent symptomatic disease entirely. and if that's the goal, then some kind of regular booster in the future suddenly looks a lot more likely. um, we already have to develop annual vaccines for influenza viruses and, and some researchers now sank that sars. coby too, is evolving just as rapidly. if that continues, then regular updates of coven 19 vaccines will probably be necessary, possibly administered m. seasonally, along with flu shots, or, or maybe as a nasal spray. of course, the corona virus could also evolve to cause such harmless disease that we all stop worrying about it. but even if that one day happens, most experts don't expect it to be any time soon. gun air was the 1st,

can she in africa to take delivery as kind of it? 19 vaccines under the un backed co luxe initiative. but so far less than half, i think 13000000 people have had the job, even though millions, if dances are available. but not all gone. haines are hesitant when some now lining up to get that booster shot elvis a jetty. so why is electra and debris sat chair at the public, tertiary institution and gone as capital across? he hasn't been to work the days following a surgeon cove at 19 infections at his school. so why is staying away from work as a precaution? those who are m, i normally mother and m, m and t and who also have an ada conditions like

diabetes like hyper tension i which also puts them at ox. ruth castle, that was a situation. and there was a kind of apprehension by heart that he via contracts the, the virus, just some, did i piece of wood, then i could also infect these people, eat that my kids all my, my, my, my, my parents. so that was how was a child, and i shall come for this whole psychological twitter. so i went to his cove at shouts at the peak of the pandemic. but regular visits like this to his elderly mother who has diabetes and suffers from high blood pressure, means he must be better protected. without hunch, he's already thinking of getting a booster shot. so far, garner has administered 17000000 coven doses to about 11000000 people. millions are

still hesitant about the vaccines in general, let alone getting a beast a shot. depression give me like at terrible severe beings in air. i was, i mean, to get to be picked up at a, i thought they can in the block. so maybe i'm thinking i thought they came the 2nd one. you might even get m m m a west or something. so i'm trying to avoid. yeah. as on our mood, i'm with beginning bob. yeah, martino. so thinking the 2nd appeared one to me is way back. i select chicken if i don't excited. i have fast feedback and having a complicated nelly marin ticket and i'm short out the group we remit nursing. how think is health officials are concerned about the level of hesitancy towards the vaccine their focus now is getting those who are vaccinated

a booster shot we realize that after some time, the immunity goes down and so we need to reinforce yamini cause coffee hasn't gone covered his nor going anyways, come to stay with us in a week. we should put it bluntly and therefore we need to protect ourselves now that we know how to disease it transmits and how we can prevent it. of course, their best thing is to prevent yourself and therefore, reinforcing your immune system is very important that that is a sense of the a booster. ok, great today. so why is making inquiries about where to get his booster shot? he has about a hospital just 5 kilometers away from his home. this center just like many across the country is almost empty. so or is among just

a few people who've come to day to be vaccinated really? your day i have this conviction now that i have better immune system. i'm to put myself to go to my family. i am at our colleagues and of course my, my loved ones, so i'm excited. so what is going back to work for the 1st time in days? but now with his booster vaccination? he feels more confident now about his protection from pope at 19 in the phase, nearly 2 years of the pandemic, africa was always lost when it came to vaccine supplies, not least because their window productions lights, the vaccines in africa. german company by intake is now building a plant in london, but will it helped solve future problems?

behind these inconspicuous signs are grand plans. here in the rwandan capital kigali, the german company beyond tech is building a plant for m r in a vaccines. c, e o, we are shaheen. welcomed the president of romando polka gamete along with other high ranking officials from other african countries. for them. this is not just about laying a foundation, stone, but about gaining expertise and highly qualified jobs, and being able to stand on their 2 feet during the pandemic condition. maxine manufacturing requires a height is scared human cantico. i'm up to announce that cabinet has approved establishment of the african bio manufacturing institute, which will provide training and quality vacation for

this industry. beyond tech aims to have the m r, n a production lines ready in 6 months. the 1st vaccines are scheduled to leave the factory in 18 months. this is made possible by what it calls the beyond tainer. it allows key elements of the vaccine production to be brought quickly to any place in the world using a modular process. the vaccine plant is also a hot topic, 30 kilometers away in the mood geena region. the people here live mainly from agriculture and getting to a doctor or hospital is a law on and exhausting journey for many. no, no, that was due on the by, on tax african m r n. a manufacturing plant will greatly help to prevent any disease that may occur in our country as well. and if these vaccines are manufactured hair, when the purchase price will not be high to the content that will help us to fight the next pandemic contest was his. like most other countries in africa,

rwandan now has enough vaccine against coven 19. but in the 1st year and a half of the pandemic, it was very different. the vaccines were developed by companies in western industrialized countries and were 1st used to inoculate their own population. there was the international vaccine initiative kovacs, which was intended to bring vaccines to poorer countries, but deliveries were slow for a long time. dr gisela schneider has been supervising vaccination programs in africa for years. she saw the disappointment of the people there 1st and d. u, an african over the young african say they need their own structures. full corbin, these that they're experienced during corona virus was the co vac sounded good as a but they still have to wait at the back of the q one. and yet, i want to take things into their own hands. they want the rights to continue their own am, are in a research to produce their own vaccines on. so i am stuff, it's a potent ceiling in terms of africa having its own production sites for vaccines.

beyond tex work is a step in the right direction, probably, but much of the expertise remains here at beyond checking. local researchers say they will only benefit if the patent rights are released. every bank wants to have a monument affection on the ground. and then we have to agree on a, on a collaboration plan, which is a complex project. and they have to agree who is contributing what that's why south african scientists are developing their own m. r, in a vaccine in cape town, to be independent of the patterns of western companies. april, take some time before average in delivers results. but the ideas that african countries will also have access not just to vaccines, but to all the technology at any char ah reports. if new york's demise, it turns out, have been greatly exaggerated. fall off am leaving the big apple for good. more

people are moving there now and before the pandemic, and that's pushing up the cost of living and hitting the poorest hod oh, the will to protect his families whom he fabian bravo boys. he's fighting back against the rent increase. i moved to little thinking that they would send us tenets allen, to the street where no fear, life is possible. i leave you a little money for tens of thousands. life on the street is already a reality. homelessness in new york is the highest. it has been in almost a 100 years. the main cause to little affordable housing. more people are returning to the city than before the pandemic. and they are looking for more space that's driving up prices. average rent price is up by

a 3rd compared to 2021. and so our evictions. low income families like that of fabian bravo, are now in a bind nor rob rob works as a housekeeper, 7 days a week. yeah. she's already struggling as inflation is biting into the family budget. we're kicking before he goes out. why neither power now he's gone to night, things on the phone. so we have to change a little bit before we live, like 2 more chickens, we lay only one. so we as this toys, so now we, why more base double cucumber earth. um still larry, we looking for the deal. okay. the family of 5 is crowned into a 3 bedroom apartment that they're building is designed to be affordable. the city regulates their rent increases. the increase this year, it will come to about $70.00 a month, and even bravo had a work injury if somebody was back and was unemployed. that means

a 17 year old daughter is samantha help with the extra cost instead of paying for versus what. let's see that one, the, one of the, some of the stuff i'm not going to say no fear killing teenagers dreams. if i don't speak out, if i don't raise my voice in this, who will give i don't want that. it was, i had to do it for my kids was in for my family. and i mean, i me for me that miss equals the city appointed for decided to raise the rent of 1000000 apartments in new york this summer. by making his case to them, fabian wants to keep it with almost fordable in the future. he tells the board about the anxiety inflation is already causing his family and he ends on a plea, no more rent increases. with

that. so for this week, next time we'll look at the link between cobit 19 and diabetes. see you then ah, ah, ah, with

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happier and healthier. both sound easy. it is which training methods are the most effective? what truly makes us sweat, and why do we get sore muscle? mid am truth about fitness, in good shape. the 90 minutes on d w. o . co mike speaking, how can this national hatred of a people be explained? a gold hon go? a history of anti semitism is a history of stigmatization and exclusion of religious and political power struggles. christian christianity wants to convert. that is why christianity use

the figuring of the jew as little tesla? it's a history of slender of hatred and violence. is the buckets memorial and then on the jews were considered servants of evil. we simply told you the most atrocious chapter. a 3rd of our people were exterminated 6000000 jews, like microbes to be annihilated. even 77 years after the holocaust hatred towards jews is still pervasive. a history of anti semitism this week on d w. ah ah

ah. ah. business dw live from berlin. hobbs grow that an international food crisis can be east of the month of talks. moscow and keith appeared to appear ready to find a deal to resume grain shipments from black sea port blockaded by russia. also coming up a searing indictment of donald trump. us lawmakers say he chose not to act as a mom of his supporters stormed the capital for 187 minutes on january 6.