An analysis of blood antibodies reveals the acquisition of immunity from infection with Corona a second time

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Scientists at Ohio State University have developed a new blood test to detect antibodies against the Corona virus, which gives faster results than current tests and specifically identifies so-called “equivalent” antibodies, those that protect by preventing infection from cells, and this reveals your acquisition Immunity from a second infection with Corona, according to the “Medical” website.

Knowing that you developed antibodies after recovering from Corona does not tell you everything about your immunity, levels and types of antibodies can differ between patients, and these differences can affect whether a person is protected from reinfection or not.

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“With many tests currently in use, we can detect antibodies, but this does not tell us whether they neutralize the antibodies, we only know the level of antibodies a person has,” said Shan Lu Liu, a professor at Ohio State College.

He added: “Some antibodies may be protective, some may not be, and some may enhance infection – we know that with this type of coronavirus and some other viruses, some antibodies can cause harm.”

“Our test checks if the antibodies are likely to be protective, which means that they prevent the patient from getting infected again and prevent the virus from multiplying. This is the result of the infection that we want people to catch,” he said.

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In analyzes of blood samples taken from several different populations that tested positive for COVID-19 Through this new test, researchers found that ICU patients generally produced the highest concentration of neutralizing antibodies, and plasma donors and healthcare workers had the best results with the lowest levels of antibodies.

“So the more severe the disease, the higher the levels of antibodies produced and what this tells us is that there is a wide range of different antibody levels after infection,” said Liu, who is also a researcher at the Retrovirus Research Center and co-director.

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