Questions about the accuracy of Covid-19 tests is the subject of a recent study by the University of Oxford’s Center for Evidence Based Medicine and the University of the West of England. They found the swab based technique used for most Covid19 testing to be at risk of returning false positives since copies of the virus’s RNA detected by the tests might simply be dead inactive material from a week’s old infection. Patients infected with Covid 19 are usually infections for a week or less. Tests can be triggered by genetic material left over from a weeks old infection.
For example, earlier this summer, a Connecticut State lab found 90 false positives out of 144 Coronavirus tests administered.
Approximately 3,700 Swedes received false-positive COVID-19 tests due to a faulty testing kit from China, according to the Reuters, citing a Tuesday statement by Sweden’s Public Health Agency – which said that the kit was unable to distinguish between a very low level of the virus and a negative result.
Add this to the reports of more than 96 percent of US Covid19 deaths has preexisting condition, and more than 95 percent of UK Covid 19 deaths had pre-existing conditions.
Testing data is often released before corrections are made. You’ll then read about spike in Covid cases. That’s usually because tests were administered. This is probably important data that decisions to open economies, stop quarantines are based on. If mistakes are made and corrected, then adjustments in decision making would follow. But that doesn’t seem to be what’s happening and people know it.