In January 2021, the World Health Organization issued a statement confirming that issues exist with the RT-PCR test and the possibility of false positives. In fact below are some serious problems to take into account:
- There can be large-scale test kit contamination, as both the US and the UK (and several African countries) discovered during the early phase of the pandemic.
- There can be testing site or lab contamination, which has led to countless false positive results, school closures, nursing home quarantines, canceled sports events, and more.
- The PCR test can react to other coronaviruses. According to lab examinations, this happens in about 1% to 3% of cases if only one target gene is tested, as is the case in many (but not all) labs and as the WHO itself has recommended to avoid ambiguous positive/negative test results.
- The PCR test can detect non-infectious virus fragments weeks after an active infection, or from an infection of a contact person, as the US CDC confirmed.
- The PCR test can detect viable virus in quantities too small to be infectious.
Full report by Swiss Policy Research below