A third dose of coronavirus vaccine could be beneficial for some

Giving a third dose of a coronavirus vaccine to residents and staff of residential care centres would be beneficial, Belgium’s Public Health Institute Sciensano said Wednesday, basing their conclusion on the PICOV-VAC study conducted in January in two care centres in the country. While all participants, young and old, made antibodies against the coronavirus after receiving two doses of the BioNTech/Pfizer vaccine, the study found that the number of antibodies made after receiving the BioNTech/Pfizer vaccine was much higher in people who had been infected with Covid-19 before vaccination.