WHO changed its guidelines on the use of PCR testing on the day of Biden's inauguration. They now state that a positive result is not indicative of a COVID19 infection and that a second test is required along with a clinical diagnosis.
Tesa

WHO Information Notice for IVD Users 2020/05

Product type: Nucleic acid testing (NAT) technologies that use polymerase chain reaction (PCR) for detection of SARS-CoV-2 Date: 13 January 2021
Ultraviolet
...and as a result of the new standards, the infection rates will suddenly drop. Convenient, eh?
Our Lady of Sorrows
Blaze at World biggest Vaccine maker
youtube.com/watch?v=W_XM62ti4XI