The World Health Organization (WHO) has changed its PCR test ctiteria to cover-up false positives and cautioned experts not to rely solely on the results of a PCR test to detect the coronavirus.
In updated guidance published on Jan. 20, the WHO said that lab experts and health care practitioners should also consider the patient’s history and epidemiological risk factors alongside the PCR test in diagnosing the coronavirus.
The new guidance could result in significantly ...
