>> daszak: correct. to do is go to those farms and investigate, talk to the farmers, talk to their relatives, test them, see if there were spikes in virus there first. >> stahl: so, the team doesn't actually know if any of the farmers or the truckers were ever infected? >> daszak: no one knows yet. no one's been there. no one's asked them. no one's tested them. that's to be done. >> stahl: despite those unanswered questions, the w.h.o. team and their chinese counterparts all agreed that this hypothesis of a pathway from bat caves to butcher shops like these is the most likely explanation. >> daszak: something like 75% of emerging diseases come from animals into people. we've seen it before. we've seen it in china with sars. >> stahl: is the lab leak theory any more or less speculative than the-- your pathway? >> daszak: for an accidental leak that-- that then led to covid to happen, the virus that causes covid would need to be in the lab. they never had any evidence of a virus like covid in the lab. >> s

oh, it's peter daszak, surprise, surprise, now let's see if you can guess what daszak and his colleaguesd in their investigation? well, a whole lot of chinese innocence. in the w.h.o.'s 120-page report on the origins of the virus, only two pages address the possibility it may have come from a lab. although rare laboratory accidents do happen in different laboratories around the world are working with bat coronavirus. yet, the report says, the wuhan cdc laboratory moved on the second of december 2019 to a new location near the wet market, such moves can be disruptive for the operation of any laboratory. but tonight get the wrong idea says the w.h.o. it is still a and we're quoting extremely unlikely the virus emerged from the lab why is it so unlikely exactly? here is the explanation. there is no record of viruses closely related to the controversies in any laboratory before december of 2001 or genomes that in combination could provide a sars covid 2 genome. in other words, we didn't find a paper trail because china didn't leave one. if anyone could keep deadly viruses from escaping into

. >> reporter: peter daszak confirming what cnn first reported in january of last year that the seafood market sold more than just seafood and number two, wildlife markets in china provided a pathway for the virus. rosemary. >> kristie lu stout, many thanks, joining us live from hong kong. let's turn to dr. shawn griffiths in oxford, england. she was the chair of hong kong's inquiry into the sars outbreak in 2003. thank you, doctor, for joining us. >> good morning. >> so what did you make of the findings laid out in the w.h.o. report on the origins of covid-19 and how credible are these given the very restricted access the team received a year after the start of this pandemic? >> well, as your reporter was saying, this is a draft report, and i was sent a copy by your team. so i've had a very quick look at it. but the findings aren't altogether surprising because if you go back to 2003 when the sars outbreak, a coronavirus outbreak which affected hong kong in particular and the far east as well as spreading to canada, and was seen as -- is now seen as a forerunner of this covid outbreak.