Wuhan lab scientists may have had COVID-19 before first reported cases: US
The US has claimed that researchers inside the Wuhan lab became sick in autumn 2019, before the first identified case of COVID-19. The US said they had symptoms consistent with both COVID-19 and common seasonal illnesses. "This raises questions about the credibility of a senior researcher's public claim that there was 'zero infection' among the staff and students," it added.