You can easily check if someone has been infected with SARS-CoV-2 in the past. That’s what virologist prof. Włodzimierz Gut. He confirms that some people infected with the Corona virus pass it without symptoms, but they later suffer from complications characteristic of Covid-19 disease. Therefore, it is worth knowing if we have suffered from the Corona virus.
“The new variant of SARS-Cov-2 is more contagious than its predecessors, but not as often causing infections, for example, acute respiratory failure. Symptoms of the disease are very mild or absent– said Professor Maciej Banach of the Medical University of Lodz.
PAP asked the professor. Włodzimierz Gut, Whether people who suspect they may have had the infection asymptomatic have a chance to check if this is the case.
He explained that the principle of their operation is summarized in the fact that “Look” tests for a nuclear protein, i.e. the proteins that make up the envelope of the mRNA virus.
“These proteins are in the virus, but the vaccine is not Even people who have been vaccinated three times can tell if they have had a “close encounter” with the pathogenProfessor Gott explained, but added that it was impossible to verify that this had happened.
They are in the market Three types of tests – qualitative, semi-quantitative and quantitative. Only qualitative tests indicate possible contact with the coronavirus. In contrast, quantitative tests They also test the amount of antibodies.
This means that some quantitative tests can determine whether a person has antibodies to the vaccine. Whether she succumbed to the coronavirus without symptoms and also acquired immunity for this reason.
Such tests detect the presence of two types of proteins – nuclear phosphoprotein (N) and the S1 subunit of the barbed protein (S). A person with Covid-19 may develop antibodies against both the S protein and the N . protein. On the other hand, a vaccinated person will only develop antibodies against the S protein.
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