The doctor answers the main questions about antibodies and their testing
How many antibodies does a person need to protect themselves from the most harmful strains of the coronavirus infection COVID-19?
According to Doctor of Biological Sciences, Professor at the School of Systems Biology, George Mason University Anchi Baranova, the level of antibodies lgG when using the test Abbott Architect Quant II should be from 1300 units / ml and above.
If the analysis is done by a test system LIAISON XL Diasorin, then there is a different scale and the level of IgG antibodies should be from 200-300 U / ml and higher.
This opinion is shared by Researcher, Laboratory of Biotechnology and Virology, NSU, Ph.D. Margarita Romanenko, with a slight change in the threshold of antibodies in the LIAISON XL Diasorin system, where, in the opinion of this expert, an antibody level of 120-130 U / ml will be sufficient.
Why get revaccinated in six months
Many people are perplexed - it seems that the vaccination should have been enough for a year, or even two. Why are we being called upon to vaccinate again, even though half a year has passed?
There is no deception or secret here. Quite often, mutations of the virus lead to a decrease in its virulence, in other words, strength. But new strains of COVID-19, alas, are still becoming more aggressive. There is evidence that more antibodies are required against new strains to protect against delta coronavirus. That is why there was a need for additional stimulation of antibody synthesis by revaccination.
But is it necessary to count antibodies at all and spend money on this analysis?
Many scientists believe that this is pointless. Still, there is no exact data on how many antibodies should be for protection.
My colleague at Moscow State University, Corresponding Member of RAS Simon Teimurazovich Matskeplishvili, calls this craving for knowledge of the level of their own antibodies "play and fun." One cannot but agree with him, especially knowing that this is inherent, in the main, to our compatriots.
The presence of antibodies does not interfere with vaccination in any way, does not make it useless.
Who is the best and the worst protected
It is important to know that the maximum amount of antibodies in people who first got sick and then were vaccinated, according to scientists from the Institute of Chemical Biology and Fundamental Medicine SB RAS. BUT minimal, for those who have been ill, but have not been vaccinated.
In a severe course of the disease in the course of treatment, they are often used hormones that help suppress the immune response. But their use at that moment is justified by the need to save a person's life.
Therefore, a few months after being discharged from the hospital, a person must be vaccinated, since the level of his antibodies is unlikely to be sufficient under such circumstances.
I am in solidarity with my colleagues and consider vaccination to be a huge boon of medicine and it is stupid not to use this boon. Antibody levels are constantly changing, and recommendations vary significantly from expert to expert. therefore it is better to revaccinate and live without fear of getting sick hardsince no vaccine guarantees that no one gets sick. But in the overwhelming majority of cases, against the background of vaccination, the disease flows easily or asymptomatically, and, most most importantly, the risk of complications that develop in a large number of patients with coronavirus infection decreases of people.
Your Doctor Pavlova
The Sputnik V vaccine was analyzed in detail in the West. Unexpected facts about side effects revealed
An Indian mutant coronavirus has arrived in Russia. Why is it dangerous and does the "Sputnik" vaccination help against it?
