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Heather elvis' parents didn't know what to think. two days earlier their daughter had been all smiles out on a date. now a policeman was at their door and just found heather's car at peachtree landing abandoned. >> the officer said do you have extra keys or spare keys for the car? i said, yes. he said, grab those, let's take
And wong, considered one of the world's top emerging disease experts to find the source of the deadly outbreak. these virus hunters were pursuing a theory that bats could be the origin of sars. the team headed to the region in southern china, hunan, to try and solve the mystery of sars. xi and other researchers started exploring caves in southern china, looking for bats that could have been the origin of that first sars outbreak. >> dr. john epstein was a researcher on that expedition. >> when we go into an environment like a bat cave to catch bats, we have to protect ourselves. that includes ...
>> the adaptation. >> it doesn't appear that they get sick or very sick when they are carrying viruses that can be deadly in other people and animals. >> so could studying bat immunology help us, humans, create possible treatments to fight this current and future pandemic? what do you think is the greatest challenge, in terms of finding a treatment or cure? >> to my mind, the number of unknown viruses that are out there. i mean, we think there are about 1.7 million unknown viruses, of the type that can get into people. and we've got to get ready for these. find out what they are out there. get...
Looking to bats to find clues on how to help humans fight coronaviruses, like covid-19. >> i think, in a way, there is actually a lot we can learn from bats. you know, this group of animals that's been around for millions of years. how can we look at their history with viruses and take that knowledge, and think about therapeutics and treatments, for ourselves? >> what is it about bats that allows some of them to host these viruses, without showing any illness? >> that's the question that cara brook is trying to answer. she began studying bats in madagascar in 2012. she and her colleagues are i...
They have a very unique relationship with pathogens generally. they have a unique biology and it allows them to co-exist in different ways. >> there are various theories about why that is. it might have to do with how long bats have been around. >> bats are an ancient species. they have been on planet earth a long time and that means they've had a long history of being exposed and adapting to viruses in nature. >> another theory involves their body temperatures. >> a lot of people have come up with these sort of armchair solutions. like maybe it is because they fly and when they fly, their bod...