Here's what you should know about the Covid-19 vaccine boosters:
He notes that unpublished data suggests 8 months as a reasonable interval for boosting, given preliminary data on waning immunity. He also suspects that immunity after that will be long-lasting.Helen Branswell has an excellent post
on this: The decision “is being met with bafflement, concern, and even anger from a number of immunologists, vaccinologists, and people steeped in the normal way such decisions are made.” One of the concerns was that the decision was made before the FDA even approved the Pfizer vaccine and before agreement from the Advisory Committee on Immunization Practices and CDC. This type of decision, outside standard procedures, breeds mistrust. Many of the specialists Branswell spoke with were not convinced that we would need a booster anytime soon. One of the questions I have gotten has been regarding mixing vaccine types. Since Moderna’s vaccine has seemed to be more effective vs.
The bigger question is what to recommend for people who got the Johnson and Johnson vaccine, and the experts have punted on this for now., Senior Scholar, Johns Hopkins Center for Health Security, said, “There is some promise to mix and match strategies using mRNA vaccines and adenovirus vectored vaccines. This likely improves immunity…” but the data is not yet ready “to be able to turn this into a formal recommendation.”One of the major concerns about boosters is that of vaccine equity.
and destroyed because of abysmal vaccine uptake. Adalja notes that one of the major problems is that of “government export restrictions.” Hotez shared a thought-provoking perspective with me: “Even if the US donated its entire stockpile of vaccines tomorrow, it would make very little impact. The focus around sharing existing doses will solve about 10% of the problem [and is not the solution]. We can and must produce 6 billion doses for the world now, while delta is circulating in Africa.
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