Governments need to wake up to the facts!14 Jun 2020 00:54
Most of us who do research or follow covid 19 news already know that rapid test kits are so unreliable as to be useless in diagnosing covid but many governments, it seems, are still not getting the message.
https://www.nepalitimes.com/here-now/stop-rapid-testing-now/
"STOP RAPID TESTING NOW!
Further use of rapid diagnostic tests for COVID-19 will end up killing more Nepalis
Why rapid tests are doing more harm than good, Ramu Sapkota
While the government continues to order more consignments of RDT, and keeps sending them to health centres all over Nepal, the trajectory has not been looking good for RDT for a while. With the COVID-19 peak predicted sometime in July, it is now time to abandon the ineffective RDT for COVID-19 diagnosis.
This is not the first time that epidemiologists, public health professionals, and doctors have warned the government about the ineffectiveness of the RDT. There are many things we do not know about the COVID-19 virus, but what we do know is that it is highly contagious and does not behave the same in everyone. It is time for the government to understand that PCR test and RDT are not the same and cannot be used interchangeably.
A person who acquires the virus on day one will not start to transmit the virus immediately and both the RDT and PCR test will not show the presence of COVID-19 in that person’s system. Things start moving by day four-five when the virus starts spreading rapidly around the body.
Far-western Province stops COVID-19 tests
It will start clustering around the nose, throat and lungs of the person who acquired the virus, and will be at a high risk of transmission. Yet, RDT will not detect the virus, whereas PCR tests will start to identify it. A week in, the person who acquired the virus may or may not show symptoms, but the risk of transmission is high, and PCR test will detect the virus, but RDT still will not.
Between days 11-15 the PCR test will continue to show positive results on the infected person’s sample. It is only after day 11 that RDT will also start showing a few positive results. By day 21, RDT will show more positive results, and PCR will not.
When a virus attacks a human body two types of antibodies are created to fight against it. RDT tests pick up both antibodies, but they do not peak before 9-11 days. That is the reason why RDT kits do not pick up early infections. RDT is only useful if we want to understand a source of some unknown infection, or a community’s immunity and absolutely should not be used in the diagnosis stage."