Coronavirus reinfection may occur every year across the globe, suggested by a study, saying that COVID-19 immunity can disappear after three months. The new research claimed that annual coronavirus infection could happen, just like common cold or flu, creating the idea that the viral disease could be eliminated with the help of herd immunity, explained by Daily Mail.
"If you're reinfected after some time, it would be an attenuated disease. It will be not as severe as the first time because your B and T cells remember the virus and react quickly," said a vaccinologist at the Icahn School of Medicine at Mount Sinai, Florian Krammer.
The immune response of the patients to the viral virus could be connected in a different layer of the immune system since the research discovered that COVID-19 patients did not develop detectable antibodies. It was also stated that the level of antibodies needed by an individual to be considered "immune" is still unclear.
"We do not know how much protection the antibodies may provide or how long this protection may last," wrote the Centers for Disease Control and Prevention (CDC). Krammer said that compared to measles and other viruses that have better studies, which provide information about the needed antibodies, coronavirus doesn't have enough studies.
