Booster shots for COVID-19—the debate continues

As a minority of countries consider offering booster doses of COVID-19 vaccines to their citizens, the majority are yet to vaccinate their entire populations with a single dose. Talha Burki reports. On Sept 1, 2021, the European Centre for Disease Prevention and Control (ECDC) issued a technical report outlining the public health case for booster doses of the COVID-19 vaccines. It concluded that fully vaccinated individuals in the general...