The Wuhan Institute of Virology’s head of their National Biosafety Laboratory again addressed the war propaganda pushed by Pompeo’s task force and published by the Wall Street Journal, regarding hidden COVID cases at their lab. WIV keeps the annual serum samples of lab staff, which have shown no abnormal diseases for years, including COVID. Separately, there was in January 2020, a WIV retrospective study of 1,001 samples from patients of the Wuhan Union Hospital. (This was a search for earlier cases.)