When antibodies are much stronger at fighting the virus

[EN VIDÉO] Coronavirus: you may already have antibodies without knowing it Without any infection, some people display antibodies that react to the SARS-CoV-2 protein. This particularly applies to children who are highly exposed to various seasonal viruses and indicates cross-immunity. Can we then hope that a good cold will protect us from Covid-19 infection?

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I’immunity It is our body’s ability to fight off pathogens. A body is said to be immune if it is able to virus or bacteria when infected. Vaccines enable the body to face a trap of pathogens in order to teach it to defend itself. Thus, he will be able to react when confronted with the virus in reality. In case of COVID-19The body’s response to the virus seems to increase tenfold when it actually detects it after vaccination. Good news in the current context, as the World Health Organization expects half of Europeans to be infected Omicron by mid-March.

They were vaccinated and then infected…

The concept of “superimmunity” was first mentioned in a study published in gamma network On December 16, 2021, comparing the immunity of vaccinated and subsequently infected people SARS-CoV-2 To people who have been vaccinated but have never had the virus. The first group of people was the rateantibody Amazingly, 1000 and even 2000% more than the second group. The most interesting thing, that antibody People from the first group (vaccinated and then infected) had a greater ability to neutralize different variants of the virus than the second group.

… but also infected and then vaccinated!

A new study was recently published in the journal ImmunologyIn This time he focused on the immunity of the infected and then vaccinated them. The study showed that the immunity conferred by infection Coronavirus followed by vaccination or post-infection with the virus provides the same level of protection against SARS-CoV-2 reinfection.

In both cases, immunity to the virus is very high. In fact, the level of antibodies obtained by one scenario or the other is at least 10 times higher than that seen in people who benefited from the vaccination but were never infected. In both cases, the antibodies are not only present in large quantities, but they are also much more powerful in fighting the virus. Here too, the authors speak of “super immunity”. This research has been conducted beforeThe Appearance of of the Omicron variant, but several elements suggest that these results also apply to this type of coronavirus.

Should we then seek post-vaccination infection to obtain this superior immunity? of course not ! Being infected with Covid-19 voluntarily means you are at risk of contracting a dangerous form or contracting the disease Covid-19 lang Unable to function normally for several months. Voluntarily sheltering Covid-19 also means stimulating the circulation and rise of the virus new variables, potentially more dangerous.