This is a question that has plagued scientists since the outbreak: Will infected people produce antibodies? If there is an antibody, how long can it last? Not very long. According to a new study published in the journal Nature Medicine, antibodies can last only two to three months, especially those withathemed infections.
Experts are careful to say this does not mean they will be infected for a second time. Even low-level antibodies can still provide protective effects. But this challenges the idea that those recovering from infection have an “immune certificate”.
Antibodies to other coronaviruses such as SARS and MERS last for about a year, and scientists had hoped the new crown antibodies would last so long.