Covid, those antibodies that betray us and help the virus

They are often in the speeches of those who have contracted Sars-CoV-2 in the past. “My title is close to zero, who knows if I am protected”, one wonders in the waiting room of the general practitioner or in front of an electronic report that has just been downloaded. There are many questions about neutralizing antibodies and their diagnostic significance, from the duration of immunity to the impact on the timing of vaccination.