Марина Жукова

Like the CDC study, these researchers look for antibodies in the blood as evidence of coronavirus infection, which can be detected as early as two weeks after a person's first infection.

Prior to the first case of Covid-19 reported in China between December 13, 2019 and January 17, 2020, the CDC researchers tested more than 7000 blood samples collected from 9 states in the United States, of which 106 contained New Coronavirus.

https://www.brasil247.com/coronavirus/quando-a-covid-19-foi-detectada-pela-primeira-vez-nos-estados-unidos

"Citing Mike Ryan, executive director of the WHO health emergencies program, the World Health Organization (who) Member States agreed that covid-19 origin tracking should not be politicized.

A team of international and Chinese scientists looking for the origin of covid-19 said on Tuesday that the coronavirus is most likely to appear in humans after jumping out of animals, and believes that the alternative theory of the virus leaking from Chinese laboratories is unlikely, said Peter Ben Embarek, head of the WHO team, The close attention of who experts to Wuhan, the Chinese city that found the first case of coronavirus, has not significantly changed the current understanding of the early stage of the pandemic.

https://www.news10.com/news/international/who-says-coronavirus-unlikely-to-have-leaked-from-china-lab/