New adventures in 360 degree. And explore fascinating World Heritage sites. D. W. World heritage 360 get me out now. Where did it all start. Most Scientists Say the Novel Coronavirus came from nature but there remains gaps in our knowledge about its precise origin. Some have chosen to fill those gaps with conspiracy theories even calling coverage 19 a manmade disease. In many ways what we dont know about the corona virus may be hurting our efforts to contain it. As the death toll reaches over 284000 across the globe the world is still waiting for the full story. Welcome to this coverage 19 special i am robots in the land is nice to have you along with us so where did the new coronavirus actually come from scientists havent reached a conclusive answer on that and thats one reason why conspiracy theories and misinformation have been able to run rampant. With much of the world still in the grips of covert 19 the story of how the virus originated remains a mystery. Beijing says it emerged from a Seafood Market in a blue hand. But early cases with no apparent connection to the markets have cast doubt on that claim. One institution thats attracted a lot of attention is the institute of 5. 00 dream. Scientists there have been analyzing specimens of coronavirus found in bats. This has given rise to several theories. One is that sloppy bio security caused the virus to be released accidentally. Another is that it was engineer it in the lab. A notion the Scientific Community firmly rejects my view very clear if not. For love or treat and the reason. Is that the genetic sequence of the virus has been. And its quite clearly an animal. If it had been an engineer. It would. Mox which showed points which engineering had been done. Many experts believe the virus originated in bats and may have jumped to humans via an intermediary host possibly a pangolin. Further questions have also received as reports suggest the virus was a ready spreading in europe in december weeks earlier than previously believed french doctors discovered a covert 19 case dating from december 27th in a man hospitalized near paris its the earliest identified infection outside china. This shift in the timeline of the pandemic could shape the course of medical investigation. So this gives us a. Whole new picture of everything and yes of course it would be great if if both countries who have unspecified cases of war here in the recent months and even december would even though they. Would check them against. Covert 900 further investigation in china may eventually establish the source of the outbreak but beijing is yet to allowed such a probe meaning key questions could remain unanswered for quite some time. While a speak to dr philip 11 saucers a research and biological threats working at Kings College london how does this case in france fit in with the existing timeline weve got for the development of coronavirus iraq its going to be with you well the french case brings the 1st case known outside of china forward by a couple leaks so its so that the virus is spreading earlier than we originally thought but the index case of the of the very 1st reported case in china was in early december so that doesnt directly impact and how we use our origin timeline 2nd we try and get to the bottom of what we do actually know so far what we know official. Well we dont know a lot for sure we dont know with any certainty how the pandemic started but there are several possibilities davenants that we currently have suggests the pandemic resulted from an unnatural spillover event where the virus jumped from bats to people possibly like an intimate intermedia animal species and weve seen that happen before a couple of times so in 2002 corona virus jumped from bats to people like a sivits and this is then what went on to become sars epidemic and it happened again in 2012 when a corona virus jumped from that some people this time die of camels and this then became the merest epidemic there are speculations that the current covert 1000 pandemic could be jumping from bats to people via pangolins but there are also other theories and were we simply just dont know for sure whether we think that happened there that transferral from animal to human. Exactly so it was aware with that still are well. What we know is that the pentameter has natural origins it wasnt manufactured in a lap or anything like that but what we have less evidence about is where the spillover event happened did it happen at the wet market in who has consistently maintained by the Chinese Government its a likely theory you know what markets where animals are slaughtered and sold on the spot provide ideal conditions for viruses to jump from one species to another and some of the early reported cases had connections to the market but not all of the early cases had connections to the market so one study found that 3 out of the 4 1st cases including the index case did not have links to the market so its prudent to explore other possibilities and open for instance. You had some say on how how do we how do we begin to work out how we fill in those gaps. Well one of the theory is that this could be somehow related to natural basic Scientific Research right and there are various possibilities within the research. Realm that could give rise to a spillover of that so for instance could researchers working with coronaviruses in labs in who had accidentally have become infected we know that not everyone infected with corona virus show symptoms so could and unknowingly infected researchers researcher showing no symptoms unwittingly have gone home to infect Family Friends or anyone else that you were she might have come into contact with another possibility would be that there was an unnoticed leak of quran coronavirus from the lab maybe from improperly incinerated waste material or from animal carcasses that found their way to rubbish bins that may you know that may be rats or our cats then accessed another possibility is that an infection occurred when researchers were out in the field collecting viruses from bats deep inside mountain caves so so there are a number of possibilities and these are still very much open questions yeah a lot of possibilities to be discounted thank you very much for your insight dr philip and then sus from Kings College london. Well now its your chance to ask the questions our science correspondent Barry Williams has been busy answering the queries youve been sending us here at the doe we used to keep them coming. How does kovac 19 affect the brain. Weve all heard by now about the most common covert nineteens fever dr hoffs fatigue but a range of other symptoms can occur also some of them involving the brain and Central Nervous system thats not surprising really other respiratory infections can also cause neurological symptoms a study from the outbreak in behind found that at one point around one in 3 covert 1000 patients who arrived at a hospital there had neurological problems other studies show that neurological symptoms are far from rare they range from from dizziness headaches and impaired consciousness to the impairment of taste smell and vision more serious events like seizures strokes and in suffer lidice have also been reported although the virus has been found in the brains of people who died from the disease experts say that many of the neurological symptoms associated with covert 19 will be caused by an overly aggressive immune response in the patients body. Or far as cove to affect reproduction in either men or women. Its still too early to say anything definitive about whether and how covert 19 could affect human reproduction but a recent u. S. Based review that summarized what 79 different scientific reports had to say about. The issue came to some preliminary conclusions it was based on what we know about coronaviruses in general and what we know so far about sars move to specifically the results indicated that in covert 19 could affect sperm quality for 2 to 3 months after an infection the review also said that catching the new corona virus could cause pregnant women not to carry to full term on the bright side the evidence from all those studies also said covert 1000 appear to be less fatal for pregnant women than diseases caused by other coronaviruses sars and murders but the authors really emphasized that it will take more time and work before we can say any of this for certain. Very quickly ems there and before we let you go wearing face masks has become the norm in many places but they make life hot for those who rely on visual communication or facial click choose thats why deaf people in belgium are calling for transparent masks not a bad idea after all not everyone working in shops or takeaway windows knows sign language and partially covering up their faces makes it even more challenging for deaf people to interact inclusion is of course more important to the time of heightened isolation such as this on earth. And i was covered 900. 00 special for more just go to our website at t. W. Dot com where we got dedicated section on the pandemic in 30 languages no less. Then thank you very much for joining. Golf special. 6 times understated european champions 2 World Championships and the limbic victory the National Soccer team but the same song. On the same stage germanys womenfolk post also serves. To call. On d. W. P. The lifeline a connection to. The original experience the critics of. How long the comedian and. The river still introduces. The communist government has big plans to develop the region. To the form of environmental Indigenous Peoples close on. 60 minutes d w. Today dont miss our highlights. Programme on mine. W. Dark calm harsh words. Im going crazy thing in all the time. To handle a new allies in times of the current a pandemic reporter. Just like everyone else and shes looking for answers and thankfully with the help of leading expert. Thank you is not life as we know it. In the. Privacy of a fight night dentist so i guess at what moment in stout would you want to stop this but you had it or did it have to transact it means its did it i dont think that theres no such