The boss of drug company Pfizer says that people are “likely” to need a third dose of Covid-19 vaccine.
Albert Bourla, who is the CEO of the company, told a panel discussion that a booster shot should probably be administered six to 12 months of being fully vaccinated.
He also said people are likely to need to be immunised against coroanvirus annually.
The company began studying a third dose of their vaccine in late February.
“There are vaccines that are like polio that one dose is enough…and there are vaccines like flu than you need every year,” he said.
“The Covid virus looks more like the influenza virus than the polio virus.”
Recently, updated from clinical trials showed that the Pfizer vaccine was more than 90 effective at preventing Covid-19 six months after the second dose.
However, more data is needed to determine if protection lasts beyond six months.
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Earlier, Dr David Kessler, the Biden administration’s chief science officer of Covid response, said that Americans should expect to receive booster shots, especially as variant continue to spread.
He said: “We are studying the durability of the antibody response,’ he said during testimony before the House Select Subcommittee on the Coronavirus Response.
“It seems strong but there is some waning of that and no doubt the variants challenge… they make these vaccines work harder. So I think for planning purposes, planning purposes only, I think we should expect that we may have to boost.”
Last month, UK Health Secretary Matt Hancock says he can see an “end” to the pandemic, with coronavirus managed “more like flu” with repeated and updated vaccinations.
In response to a question about the end of the pandemic, he said: “It depends what you mean by ‘end’. I see an end where Covid is managed more like flu: we repeatedly vaccinate, we update the vaccines according to mutations and we manage the challenges, especially around transmissions over winter.
“I’m confident that’s where we can get to. I want to get to a position where we can have an updated vaccine in weeks or months, not a year.”
A booster shot is aimed at protecting against future variants, which may be better at evading antibodies from vaccine than earlier strains of the virus.

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