Top scientists question the need for COVID-19 booster shots, says an article on Yahoo news.
Covid -19 Vaccine
COVID-19 vaccine developers are making ever bolder assertions that the world will need yearly booster shots or new vaccines to tackle concerning coronavirus variants, but some scientists question when, or whether, such shots will be needed.
More than a dozen influential infectious disease and vaccine development experts said there is growing evidence that the first round of global vaccinations may offer enduring protection against the coronavirus and its most worrisome variants discovered to date.
Some of these scientists expressed concern that public expectations around COVID-19 boosters are being set by pharmaceutical executives rather than health specialists, although many agreed that preparing for such a need as a precaution was prudent.
Concerns regarding vaccine drive
They fear a push by wealthy nations for repeat vaccination as early as this year will deepen the divide with poorer countries that are struggling to buy vaccines and may take years to inoculate their citizens even once.
“We don’t see the data yet that would inform a decision about whether or not booster doses are needed,” said Kate O’Brien, director of the Department of Immunization, Vaccines, and Biologicals at the World Health Organization (WHO).
O’Brien said the WHO is forming a panel of experts to assess all variant and vaccine efficacy data and recommend changes to vaccination programs as needed.
Pfizer Inc Chief Executive Albert Bourla has said people will “likely” need a booster dose of the company’s vaccine every 12 months – similar to an annual flu shot – to maintain high levels of immunity against the original SARS-CoV-2 virus and its variants.
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Source: Yahoo News