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The FDA says most people probably only need one vaccine a year

by SuperiorInvest

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The Food and Drug Administration has prepared a plan for how vaccination against Covid-19 can look like.

In a document released Monday, the FDA said the vaccines will likely need an annual update as the virus continues to evolve. The agency would select a Covid strain for the vaccine in the spring so that updated shots could be released each September in time for the fall vaccination campaign.

Most people get one shot to restore their protection against the virus in the next procedure, according to the information document. This would apply to people who have been exposed to the viral spike protein at least twice, either through vaccination or infection.

But older adults and people with compromised immune systems may need two doses according to the suggested vaccination schedule. Young children who previously received only one injection would also receive two doses.

The FDA released a road map ahead of a meeting of independent vaccine experts scheduled for Thursday. A panel of experts will vote on whether to make all Covid vaccines in US bivalent injections, meaning they will protect against both the omicron BA.5 sub-variant and the original Covid strain discovered in Wuhan, China in late 2019.

Currently, only Moderna’s and Pfizer’s boosters are focused on the omicron variant. If adopted, the primary series would also contain an omicron strain.

The proposed Covid vaccine update system is similar to how the FDA selects flu shots each year. The agency said it could update and introduce Covid vaccines without clinical data, which is also the case with the annual flu vaccination change process.

The Centers for Disease Control and Prevention also expects Thursday provide more information about the investigation into what he described as a “highly unlikely” risk of stroke in seniors receiving Pfizer’s omicron booster.

The CDC received preliminary safety data from its Vaccine Safety Datalink late last year. A subsequent review of four other large databases did not find an increased risk of stroke, but the CDC’s investigation is ongoing.

CNBC Health and Science

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