Pfizer to ask US to authorize third Covid vaccine shot as booster | Coronavirus | The Guardian

Pfizer plans to ask US regulators to authorize a booster dose of its Covid-19 vaccine within the next month, the drugmaker’s top scientist said on Thursday.

The announcement was based on evidence of greater risk of reinfection six months after inoculation and due to the spread of the highly contagious Delta variant of coronavirus.

And the US pharmaceutical company and its German partner BioNTech have started designing a version of their vaccine specifically to combat the highly-contagious Delta variant, Pfizer’s chief scientific officer, Mikael Dolsten, said.

However, the companies do not think they will need to replace the current version of their highly-successful shot.

Source: Pfizer to ask US to authorize third Covid vaccine shot as booster | Coronavirus | The Guardian