WASHINGTON: Pfizer CEO Albert Bourla said on Tuesday that he predicted a Covid-19 vaccine amplifier shot would be effective for a year, but warned that more research needed to assess its effectiveness.
“If I can take predictions, it seems like it will last for one year, it seems like it will be like an annual vaccination,” Bourla said during a virtual conversation at the Atlantic Council.
The CEO of Pfizer noted that the reduction of immunity after six months for the second vaccine dose and suggested that someone had to wait and see until an additional test of the amplifier was over.
“We know that we see reduced immunity six months after the second dose,” he said.
Bourla urges at least a few months for additional research done before reaching a more definite conclusion.
However, he added that the booster dose provides a higher level of protection than the original dose.