On inauguration day WHO changed the science on counting covid positives! S’prise, s’prise, s’prise....
The World Health Organization does not control case definitions for the United States. The CDC does. The CDC’s case definition hasn’t changed.
It’s right here for reference: https://wwwn.cdc.gov/nndss/conditions/coronavirus-disease-2019-covid-19/case-definition/2020/08/05/