In 2022, in a forested area of northern Thailand, virologist Meriadeg Le Gouil and biologist Pipat Soissok are collecting specimens and droppings from a colony of rhinolophids for analysis. They hope to learn whether these bats, which harbor viruses similar to SARS-CoV-2, were able to transmit the virus to an animal host, which in turn infected humans. The other hypothesis concerning the origin of Covid-19 is that of a laboratory escape. In 2021, after months of fruitless waiting, a delegation of WHO experts finally arrived in Wuhan, where the virus had spread from. They visited the now-closed former indoor market, where live animals were traded, and the Institute of Virology, although no laboratory safety specialists were among their members.

En 2022, dans une zone forestière du nord de la Thaïlande, le virologue Meriadeg Le Gouil et le biologiste Pipat Soissok, en mission, collectent pour les analyser des spécimens d’une colonie de rhinolophes, ainsi que leurs déjections déposées dans une grotte.