his successes and in a weekly coven 19 special. next on dw, 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 off we go. ah ah, sewage is dirty dot interesting. and potentially useful early warning system and a pandemic. a pilot project in germany is working out just how useful in india, the pandemic has led people to grow more of their food locally. why?

we'll think our teeth into that question later in this cove at 19 special. but right now, come with us to the republic of congo, where research is studying the lives of guerrillas in the current pandemic as a risk that people will, in fact, the gray tapes. it is 5 o'clock in the morning and robbie booker is already tracking through the congolese jungle. early mornings are the best time for the young environmental scientists to search for and study the gorillas. after a one hour trek, he spots some. under strict precautions, he tries to observe them study their behavior. remarkably, with a mask is to avoid contamination of airborne contamination with the gorilla with corona virus. it's important that we protect the animals against the disease because we know that when the disease migrates from humans to animals and then possibly back to humans, it gets very complicated along that rid of and you can pick up the north of congo.

browser vall is home to the western lowland gorillas, thousands live here. nowhere else in the world. can he find such a density of guerrillas? how dangerous as covert 19 for them. that's a question, robbie becker and his research group often debate, but they simply don't have an answer yet. after a silver back out. seriously, sick with cove it in the u. s. sue. they have been very careful. they keep at least 25 meters away from the gorillas, and everyone here is vaccinated. in the early, 2, thousands abolla killed almost 5000 guerrillas. that disease was most likely transmitted by bats, possibly from eating the same fruits. that's why rubber cocker and a group of students from the university of brother val are also researching the areas massive back population recruitment pop on the phone. it's very important to follow up on better pathogens because there's

a local community that its bets in and scientifically. we know that there's a risk of transferring disease from bad to humans who suffer. we need to know and avoid that kind of transmission and possibly also forecast what could become future diseases like your future corona, virus, luther ciocca, one of you in the capital browser. well, there are several high risk places for the spillover of diseases from animals to humans. bush meat markets, while selling endangered species like a relas and chimpanzees is illegal. many other varieties of bush meat can be bought here. robbie the cock, i can understand that local residents hunt and eat bush meat to make a living. but he is opposed to bush meat markets where he says endangered species are also often sold illegally for thorn be masika brewer crawford. oak, these are markets that can be considered breeding grounds for diseases. in those markets, viruses can be easily transferred from animals to human answered along

a pre op quickly. and when someone contracts the disease, it quickly spreads to others. it knocked it up with us. it can easily escalate from epidemic to pandemic. bonding knox is. that's the danger of those markets because he marcella. to prevent future disease outbreaks among the guerrillas, the scientists have increased surveillance, creating an early warning system. the research base is the core of the congo conservation company. his research has financed by eco tourism. it also creates employment for the community, encouraging participation in conservation efforts. but they want to keep the number of tourists low. we don't want to push on the glorious to much and or so we don't want to have her a kind of factory and like a lot of people coming in coming in, coming to him, we wanted to keep bits or as was come as possible to be a bird. oh, to manage dogs,

lives of park. and we've the consumption aspects. we don't want the most to rhythm here. the congo basin is the 2nd largest rain forest in the world, often referred to as the earth's african lung. it absorbs more greenhouse gases than the entire continent emits. and it has a unique and diverse ecosystem. in the meantime, robbie, because getting ready for his next tract to the gorillas, he has a few more weeks for his research here before returning to the capital to write his master's thesis longs on his boss. good reason, i think i'll never get tired of seeing the gorillas fit for me. it's a dream, it's a dream to be here. to be able to go and see them as a dream. i can spend all day long watching them for me as well. that is the life i want to live for. letty could come in. rather the cocker, once more congolese, to appreciate the environment and study natural sciences in his master's course. they are currently only for students.

ah, not far from kate town lies one of the leading lights of south africa's academic world stanon boss university care. a teen for search is, is on the hunt for new virus variance. late last year they discovered that on the corner variant this is the room where the omicron variant of cupboard was 1st discovered. professor julio, the only vera of stolen bosh university in south africa is leading a team conducting the genomic surveillance of deadly pathogens and a 100000000 euro research facility. how got that? a lot of the war, the got very surprised how south africa can, can be a lead that on genomic valence. but we, we were not surprised because we, we had to be leaving on genomics, avena thought, or the pot,

the agenda for the past 20 years. it was this experience that said south africa, apart from the rest of the globe, scientific community. in isolating, identifying and revealing oma kron south africa, may be a middle income country, dealing with rapid unemployment, stubborn poverty. and one of the highest rates of inequality in the world. but it, scientists are world leaders. they are leveraging the experience, gained from over 3 decades of managing one of the globes. highest rates of h. i. v and aids to be among the 1st to discover the intricacies of coven 19 and its variance. one thing that people don't realize that in addition to the only cra we alphabet tech that, that defense variance was that did that and was with our t p and guidance that the united kingdom identified that alpha. so in reality,

we have how choice then fight 3 of the 5, very info. but there was a hypothesis that a cluster of new covet 19 infections in johannesburg. south africa is economic capital were behaving differently than previous variance. he and his team worked around the clock to make the omicron discovery with hundreds of samples flown down to his lab overnight in mid november 2021. we did every field from beginning to the and the 36 hours, which, which was a lot of pressure. but, but we, we, we had a very clear line of communication and that wasn't reviewed by all the top sciences . and it was crucial because that's what allowed, not only the war 2 and a fan that both feet against the only crime would fade life and death. what we did

dying south africa, we had a very small number of that on the only con wave. and we think that our very quick scientific results, how they want to also have a lower level of death. but the discovery did not come without its costs. south africa's economy took an immediate head as the government extended locked down measures in response to the announcement. while travel bands to and from the country were immediately imposed by the majority of the global immunity and the team's lives were also put in immediate danger. we received many, many, many press menu that threats at given time. we had to put like security in the entrance to the university because we couldn't carry our work. and the big lesson to their what is that they should make mechanisms that don't in the life counters to identify new pathogenic. otherwise, we're going to have more than more than that, that's not identified. that the stress of all microns discovery has

taken its toll. but professor olivera believes that his professional pressure increases. so should efforts to stay sane and healthy, both mentally and physically so that you relax in this kind of environment. you have to think almost every school that we have in there kind of mental health basket. so in our lab we lost a lot. we tell jokes we play a lot. yeah. i do a lot of exercise, especially nature high in the mon thing. go a lot to be an alpha for me and meditation work. wow. every morning i wake up around 5 am and do a session of meditation before the day. after almost 30 years, as the genome sequencer professor to olivera believes the future of his profession lies in computing. and that anybody who wants to follow in his footsteps needs to

be dedicated and patient the main advice. sure. young people that went to become a scientist, genomics scientists is true, is to invest a lot of time, not only on the online, in the lab techniques, but learning decoding, computer coding software development. because this days, all the data that we produce in this lab is completely automated. and after 27 years in south africa, he has no plans to move abroad. even though he may have been thrown into the global spotlight. and his, you know, makes surveillance skills are in high demand elsewhere i always had a fashion to walk on science that can help to save lives that and felt the african africa is a great place from that. and that's why with the both the local fallen time to

walking with science, but also informed welcome it on how bad the to respond to it today. me not only thought would be true of it, but also from on there to them that, that called millions that the corona virus may have made professor di olivera, famous beyond the borders of south africa. but he remains committed to his humble approach to solving some of the world's most pressing health problems. with do you have questions about the korean of iris ah, science jennifer, derek williams will answer them and bring you up to date with the latest research. send them to gay, they but usa at d, w dot com. aw farish celine once to ne, have there been human challenge trials where vaccinated people were exposed to new variance? human challenge trials or

h. c. t's are trials where healthy test subjects are intentionally exposed to pathogens in a tightly controlled set. um, they're very useful when it comes to providing solid data on questions like how much of a virus it takes to really make you sick, for instance, or, or how much protection vaccines really provide. trying to figure out stuff like that from real world data is tricky and it. busy involves making educated guesses, m h c. t's can remove a lot of that guesswork. but of course, intentionally infecting volunteers with diseases that could take a serious or, or even a deadly turn is an ethical minefield. so h, c. t's are not entered into lightly. i'm aware of only one human challenge trial

involving coven 19 so far, which took place in 2021. in the u. k. i'm in it. 36 healthy young adults had drops of fluid that contained a controlled amount of sars covey to squirted into their noses. half of them later tested positive for covert 19, and 16 of them showed symptoms. none classified as serious, although 5 of the subjects did continue to report problems with smell and taste. i'm 6 months later. the study helped clarify questions about, for instance, how quickly symptoms begin to develop post infection and, and when viral load pigs. but there was one major drawback. it's that the strain of virus used in the study was isolated from a patient quite early in the pandemic. so before, sorry, coby too began to seriously mutate. and since then, we've seen

a series of new variants as the virus changed and in pretty fundamental ways becoming a whole lot more transmissible in the process. so although the study provided great data, it was pretty much outdated. by the time the results were published, a new human challenge trials would have to more or less start all over using the variance that currently dominate the coven 19 landscape. and then they likely be outdated in 6 months or so, which finally brings me to the answer to your question. i'm no, i couldn't find any h. c. t's in progress where vaccinated people were being exposed to new variance. and the reason why is that with the virus still mutating quickly and, and unpredictable ways that they just wouldn't make much sense. m

reliable day sir, and needed to respond quickly to a new korean virus ways. and we can find that information in how soon is a pilot project in germany shows that monitoring. i'll waste water can give us useful information on the pandemic. the waste water in the holy been sewage treatment plant in berlin comes from around 1000000 people. the system process is almost 250000 cubic meters a day. imagine 1300000 bathtubs filled to the brim. bill in waterworks, asked huck in as short believes what most people consider unpleasant and dirty can give valuable information about the corona virus pandemic. epa is, i thought i'd say the waste water is really a gold mine for us. because not every one goes to the test center of isaac, but everyone does go to the bathroom and ultimately provides data that we can use.

apple provides develops, ok. that's because infected people excrete viruses when they go to the bathroom long before they become ill themselves or in fact others. so why not just see how much are renee that is? genetic information from viruses arrives at the sewage treatment plant and how the numbers change that could flag waves of infection. and as, as nice as it was in that it's a very, very big mix. that was the problem at the beginning. first of all, we had to make sure that we removed all the other contaminants from the waste water to really be able to ice i, rene. this gave me it's working very well now and the hopeless that we'd be able to get a realistic picture of how the infection is spreading and kind. almost 2 years ago, susanna lac, now of the university of darmstadt, found out that wastewater samples can be used to determine how quickly and how strongly the corona virus is spreading in a region. at that time, she was in the laboratory, looking for an early warning system for waves of corona virus. she struck gold with

the waste water. the process caused a stir at the time in the netherlands in spain and in the u. s. it's much cheaper than doing hundreds of thousands of individual corona virus tests. 20 german municipalities have been taking part in the waste water monitoring pilot project since the end of last year, significantly more have applied to be part of it. the bill in waterworks are also involved. samples are taken twice a week, had several sewage treatment plants in the german capital, the participants in germany wide pilot test to then send the samples to all of oratory for analysis. in order to get results as quickly as possible, berlin, waterworks even bought their own analysis device laboratory head auto bertelsmann says that she was able to predict every single wave at the beginning of the year when the number of infections in germany rose rapidly. isn't an art, we're kind of not just and monitoring services, we're kind of an early warning system and can really predict

a wave. and when it's coming in the way smarter for saw the english for he has arg, using the data from around the end of last year. what a book and man shows that the wastewater analysis delivers results 10 to 14 days faster than the incidence figures based on individual pc artists. these in here, blood sucking you can see below smiles. here. this is the data we processed from the p c r machine in our any copies per liter. if i click here, now here we had $1500000.00 virus particles per liter of waste water data. and now if you pay attention to the green line, the green line is the incident number of the human samples. and so you can see the green peak always lags behind the blue spikes, se vehicle there blow and cool over in my winter here. no, i've and when viewed over a longer period of time, the peaks in the blue waste water data can be seen earlier than the incidences which are based on individual pcr tests. what's more, the laboratory can also determine which virus variance are represented. and to what

extent one could therefore react quickly if a more dangerous variant began to prevail over less harmful variance as he who does on while i and saying that it definitely makes sense to go beyond the pilot phase and make this part of the routine. and not just for controlling corona viruses, but also for example, influenza viruses wholly on viruses and gastro intestinal tract viruses. you set up a waste water monitoring system to get an overview. what's going on with it? now? what infections should we expect? fiona, miss miller, the pilot program will soon be completed. now the german authorities have to agree to nationwide wastewater monitoring. it shouldn't be about the money for around $500.00 euros. you can get insights into a reliable trend of infection development for hundreds of thousands of people, very early on, just by looking at the waste water. agriculture

uses a lot of water baths. as a result of the pandemic projects in the indian state of carola are increasingly relying on local cultivation. technology allows the scarce water available for adam farming to be used more efficiently. it's planting season and v j. comb our dances place and green chili peppers into the soil. the plastic sheeting traps the moisture inside. he has worked as a farmer for 6 years. lee j dance is originally from rural a some in northern india. but he has learned these farming techniques here in the city of futile vaughan on the put them in corolla on the south western coast. if a yeah b belatoya i make wish i had to just tell my dad before i came here, there's up, up on that. hell got up of like a big a be as good. now you have learned a lot about farming and about the technology. my la luz, but i think, you know, you made it no matter where i go. i don't have to worry you go mitigate. no one has

told me what to do since i already know malemad medicine does bundle mc um. got a psych don't v j das works for glean agro ventures. a small company on the cities outskirts. it provides farming and technical training to people to set up farms on unused urban land. launched in 2016. the company integrates technology with traditional farming practices, such as growing vegetables, adapted to the soil, and using only natural pesticides. founder and john sally wants to get more city dwellers to grow their own food, to better cope with future shortages. during the pandemic, the exposure to local produce was far greater than before, simply because of the fact that your resources were limited. so that has changed the pallet tremendously. and that single aspect, this ward, i believe, will be the future that i would of this business. before the coven 19 pandemic did

oven and the poor m, like other carolyn cities, imported most of its food from neighboring tunnel, now do. but the important vegetables were often heavily contaminated with chemicals . that's why the state is now promoting urban rooftop farming. more than $20000.00 people are already taking part in the program. urban agriculture could be a sustainable solution to feed growing populations and rapidly urbanized india. but unlike and corolla scaling up could be a challenge, especially in major cities like delhi, bengal noodle and china, all of which are running dangerously low on ground water levels. but experts say there could be a solution unlike did earlier conventional method of getting blends using a board or maybe a hose. now we have microevolution methods like micro sprinklers, other than that,

but that addition is that government is supporting those programs also. and that number of go private companies also bring your good models that can be fitted into this. so that want to shortlist for our problem can be forwarded to a great extent. urban farming also creates a green buffer against carbon emissions and helps to filter air pollution. but a lot of people living in cities can't afford the fresh homegrown food. i do with the helping hands. organizations supports people with autism from low income families, with the help of glue and agro it converted an acre of arid land on its lot into a vegetable patch. the autistic people learn everything about farming and can take their harvest home, working with them in the land. the organization discovered that farming also has therapeutic value. they are actually a carrying case. they blake and all our team building skill set and the way they

are in are working together. why debbie holl west? so understanding the concept m a co adding certain skills said i'm dog, communication and other alias oh, farming is really helpful. and john saline mainly sells the vegetables to middle and upper middle class families and corolla. now he hopes to reach even more people and promote the benefits of urban farming by setting up a co working space in the middle of the farm. this worked from farm initiative lets people do their office work surrounded by greenery and even raised their own vegetables if they wish. we would like to have people come over here as a regular way of life. understand as to how farming is and create that farm, connect them bond so that they are able to nurture in their minds. you know,

a dream of a future from it's working and corolla where more and more people are turning to urban agriculture. and v j comb are dos as long home to set up his own vegetable farm in his home state of awesome. that was the coven 19 special for another week? thanks for watching and see you next time through blue. ah ah!

with a 1000000000 trees plan can a global reforestation program save our climate ideas soon? stand constantly simple, but is it which trees are suitable and above all,

where should these new forms occurring in 30 minutes on d. w, a in good shape, a bundle of joy and the big challenge. children with check out some of these and during pregnancy. and some myths about childhood down just a few minutes on d. w with aah! departure into the know. today, this means flying to

a foreign planet. in the 16th century, it meant being a captain and setting sale to discover a route the world famous c. voyage of ferdinand magellan. part of a race full power between spain and portugal. a race leads to military interest, a race linked to political and military facilities, but also linked to making financial interests and adventure full of hardships, dangers and death. 3 years that would change the world forever. but jillions journey around the world. starting september 7th on d. w. ah

ah ah, does the state of the news live from berlin? no sawing that tensions in the strait of taiwan may be comic. china is conducting another day of intense military exercises off taiwan coast. the drills follow a visit to the island by the speaker of the us house of representatives. nancy pelosi.