London - Sana
British scientists have warned that the tests currently being conducted to diagnose infection with the emerging corona virus may be inaccurate, and the reason is that it may be considered a positive case despite the presence of only dead effects from the virus.
The warning was issued in a study completed by the Evidence Based Medicine Center of the University of Oxford and conducted in partnership with the University of the West of England, where it revealed that: “There may be accidentally positive cases due to the way the examination is being conducted at the present time”.
The researchers, according to Sky News, relied on 25 studies about BCR examinations that are conducted through a nasal swab to find out if a person is infected with the emerging corona virus.
The examination gives a positive or negative result, but the test can monitor the genetic material of the virus for a long time, that is, even when it becomes non-infectious, and this means that many cases are diagnosed with positivity, but they do not pose any danger to others and cannot transmit infection.
Things do not stop at this point, but a PCR test detects parts and fragments of the dead virus after the immune system killed it in the human body.
Professor Karl Henegan indicated that this is the likely explanation for the continued rise in Corona virus infections, while the number of deaths resulting from the epidemic has stabilized.
Henegan said that this gap in the examination also explains the registration of many confirmed cases without severe symptoms, or even saying that some people return to their positive status after they have recovered from Covid 19 disease.
And he stressed the need for a concerted global effort to avoid isolating people who do not pose a risk of transmission to others, especially since the closure and isolation measures lead to costly consequences.