Researchers at Kings College London in the U.K. have found that antibody responses to the coronavirus tend to peak three weeks after the initial onset of symptoms, but then begin to decline after as little as two or three months afterwardsThe study, led by Dr. Katie Doores from KCL's School of Immunology & Microbial Sciences, examined the antibody levels of over 90 patients, health-care workers and staff at Guy's and St.
Doores said that further research is needed to determine the level of antibodies required for protection from infection. Hong Kong reported 48 new cases of the coronavirus on Tuesday as the city continues to grapple with a new cluster of infections, many of which are tied to a series of restaurants, according to the city's health authorities, Reuters reported.