Scientists, including one of Indian-origin, have documented the persistence of antibodies that target the novel coronavirus in the blood and saliva of patients with Covid-19 at least three months after symptom onset, a finding that may lead to alternative methods of testing for the viral infection. The study, published in the journal Science, points to the IgG class of antibodies as the longest-lasting antibodies detectable in the patients during this time frame, and may serve as promising targets to detect and evaluate immune responses against the SARS-CoV-2 virus.

Scientists, including one of Indian-origin, have documented the persistence of antibodies that target the novel coronavirus in the blood and saliva of patients with Covid-19 at least three months after symptom onset, a finding that may lead to alternative methods of testing for the viral infection. The study, published in the journal Science, points to the IgG class of antibodies as the longest-lasting antibodies detectable in the patients during this time frame, and may serve as promising targets to detect and evaluate immune responses against the SARS-CoV-2 virus.