How long does antibodies remain in body after transferred Covid-19?

for seven months after antibody disease remain active, and their level may even grow. This is stated in the study of scientists of the Barcelona Institute of Global Health.

Specialists watched 578 volunteers who moved coronavirus in a light form or without symptoms. All of them were younger than 65 years old. The participants in the study took blood samples for seven months after diagnosis and checked the level and type of antibodies to 6 different SARS-COV-2 antigens, as well as antibodies to the four previously known coronaviruses, causing a cold.

As a result, it turned out that the amount of antibodies does not depend on gender and age. After infection, the immune response is powerful, then he begins to fall. However, as scientists have established, at some point, stabilization is observed, and in 75% of cases that were not re-infected, after that the level of antibodies is growing again. The reasons for this find out yet.