Covid Antibodies
More than two-thirds of the worlds population probably have significant levels of Covid-19 antibodies, meaning they have either been infected or were vaccinated, the World Health Organization said. So-called seroprevalence rates surged to 67% in O..
A study of 614 fully vaccinated health workers in India found a "significant" drop in their COVID-fighting antibodies within four months of the first shot. The findings could help the Indian government decide whether to provide..