Prospect of third Covid ‘booster’ dose gains interest with spread of Delta variant

As the Delta variant spreads rapidly throughout the world, the prospect of a third “booster” dose is gaining interest even in nations where a large proportion of people are vaccinated. Experts say it is too soon to know for sure if countries will need to organise a third vaccine round later in the year. Some … Continue reading Prospect of third Covid ‘booster’ dose gains interest with spread of Delta variant