The French talked about married couples in which one spouse was specifically ill with covid, and the other was next to him, but did not develop antibodies. In the second, the so-called T-cell immunity to the virus was usually found, but antibodies were not found.
There is an opinion that this is due to the small dose of infection with which the second had to contact.
It has long been noticed that if a person was ill with covid without symptoms or only slightly, then he has few antibodies, which then completely disappear. And the more seriously a person was sick, the more antibodies he had.
An easily recovered patient will easily lose antibodies. Is this good or bad? And the devil only knows. It is better not to get sick with a heavy covid, because there is always an unpredictable chance of dying.
That is, if the virus flew into our nose for only a minute, and then quickly escaped, then we can not wait for antibodies.
They also say that antibodies may have appeared, but there are simply so few of them that you cannot find them using standard methods.
In general, this is a well-known story. Previously, something similar was noticed in people who have been in contact with the hepatitis C virus. There, too, antibodies were not always found, and T-cell immunity was present. Maybe the virus was too small, or maybe it was defective. Well, like some tramp who climbed into an office building in the evening and wandered around, knocking on closed doors. Until the night watchman catches him and throws him out into the street.
There is also the idea that all these mysterious T-cell immunities may not be associated with covid, but with similar cold viruses with which we once came into contact. That is, if the antibodies are narrower, then the T cells are less narrow, but at the same time they look like covid. They are filling the price for themselves.
There is also the idea that such people really had a covid, but in a limited space. This is also a well-known trick about an infection that sits like a criminal in isolation in some place.
Antibodies are like an army that will not be alerted to patrol the entire country in case such a criminal escapes. Immunity will wait quietly, and only a few civilian T-cells will guard the locked up criminal.
In short, miracles are different, so do not chase antibodies.
