WHO Says There Is No Evidence That People Who Survive COVID-19 Are Immune

WHO says that there is no evidence that people who survive COVID-19 are immune.

The World Health Organization (WHO) warned on Saturday, the 25th of April that there is no evidence that people who test positive for the new coronavirus and recover are immunized and protected against reinfection.

The threat suggests that the allotment of “immune passports” may promote the continued spread of the pandemic.

According to WHO;

“There is currently no evidence that people who have recovered from #COVID19 and have antibodies are protected from a second infection,”As of 24 April 2020, no study has evaluated whether the presence of antibodies to SARS-CoV-2 confers immunity to subsequent infection by this virus in humans.”

 

Some governments, wanting an incremental return to work and the resumption of economic activity, have put forward the idea of issuing documents affirming to the immunity of people on the basis of serological tests indicating the presence of antibodies in the blood.

But the effectiveness of an immunization thanks to antibodies has still not been established and the available scientific data do not justify the granting of an “immune passport” or a “certificate of absence of risk”, the WHO warns.

At this point in the pandemic, there is no evidence about the effectiveness of antibody-mediated immunity to guarantee the accuracy of an “immunity passport” or “risk-free certificate.”

“People who assume that they are immune to a second infection because they have received a positive test result may ignore public health advice.”        The use of such certificates may then, therefore, ease the risks of continued transmission.”

 

WHO also believes that the serological tests currently used “need additional validation to determine their accuracy and reliability. The tests need to make it possible to distinguish the immune response to the novel coronavirus from the antibodies produced during infection by another of the six known human coronaviruses, four of which are widespread, causing mild colds. The other two are responsible for MERS (Middle East Respiratory Syndrome) and SARS (Severe Acute Respiratory Syndrome).

WHO says;

“People infected with one or the other of these viruses are capable of producing antibodies which interact with antibodies produced in response to infection caused by SARS-CoV-2”, empasising the importance of being able to identify them.”

Related posts

Leave a Comment