A study from Britain raises doubts about possible lifelong immunity after a Covid-19 infection. Antibodies to the novel coronavirus fell rapidly in the British population in the summer, according to a study by Imperial College London released on Tuesday. This suggests that protection after infection may not last long.
Scientists looked at the level of antibodies in the UK population after the first wave of infections in the spring. As a result, the spread of antibodies dropped in 6% of the population at the end of June, reaching only 4.4% in September. There have been fewer changes in antibody levels among healthcare workers, possibly due to their repeated exposure to the virus.
The vaccine can protect better than natural immunity
In the professional world, rare cases of a second coronary infection have already raised doubts about immunity to the virus. A study from the Chinese University of Chongqing had already shown that the amount of antibodies in the blood of recovered Covid-19 patients can significantly decrease within two to three months.
Experience with other coronaviruses has suggested that immunity may not last long, Imperial College scientists said. They pointed out that the rapid decline in antibodies does not necessarily affect the efficacy of corona vaccine candidates currently in clinical trials. “A good vaccine can be better than natural immunity.” (SDA)