Researchers reveal chances of having COVID-19 antibodies without prior infection

World

Published: 2020-11-14 17:14

Last Updated: 2022-01-17 14:25


Researchers reveal chances of having COVID-19 antibodies without prior infection
Researchers reveal chances of having COVID-19 antibodies without prior infection

Research has shown that once a person has contracted COVID-19 and recovered from it, the body will create antibodies resulting in immunity from the virus. However experts are not pointing to an “automatic” immunity for some.

Researchers from the Francis Crick Institute and University College London have likely have found an explanation for the ability of some people to better deal with the coronavirus infection than others.

According to the medical study recently published in the Science journal, researchers have initially developed a high-sensitivity test to detect COVID-19 antibodies.

Scientists use this test to find out whether the person who was infected with the coronavirus has acquired any antibodies upon recovery.

For the medical study, samples were taken from individuals who were never infected with COVID-19 in order to try to find antibodies, and in surprising results, scientists detected coronavirus antibodies from those people.

To explain these findings, researchers said that the immune system will respond accordingly when it detects any infection of a virus that belongs to the coronavirus family and causes health disorders such as the regular flu.

Scientists call this immunity "cross-reactive," meaning the response of the immune system upon detecting an infection that affects the body in cases of a collective of diseases from similar groups.

There are four other common seasonal viruses from the coronavirus family, but they do not lead to serious diseases, with their symptoms often being mild and not severe.

Scientists say that our bodies do not develop long-term immunity to these viruses, and for this reason, a person may become infected more than once.

However, individuals who have previously been infected with a virus from the coronavirus family may be immune to COVID-19.

Experts explain that viruses belonging to the coronavirus family have similar proteins known as "Spike" or “S-Protein” which attach to host cells and infect them.

A researcher from Francis Crick Institute and the leader of the study, George Kassiotis, explained that the antibodies recognize this protein, which leads to the obtainment of a cross-reactive immunity.