Antibodies to SARS-CoV-2 are detected up to 3 months after infection

A new study in health care workers led by the Barcelona Institute for Global Health (ISGlobal) shows that IgA and IgM antibodies to SARS-CoV-2 decay quickly, while IgG antibody levels are maintained for at least three months after infection. The longer follow-up of this cohort will provide much-needed information on the duration of different types of antibodies to SARS-CoV-2, the virus that causes COVID-19, as well as their role in protecting from disease and reinfection.