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Pfizer: Early lab findings show booster protects against omicron variant

Added 12-08-21 08:03:01am EST - “A booster dose of the Pfizer-BioNTech vaccine provides protection against omicron that is similar to a two-dose course against the original strain of the coronavirus, the companies said Wednesday based on preliminary lab studies.” - Washingtontimes.com

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Posted By TheNewsCommenter: From Washingtontimes.com: “Pfizer: Early lab findings show booster protects against omicron variant”. Below is an excerpt from the article.

A booster dose of the Pfizer-BioNTech vaccine provides protection against omicron that is similar to a two-dose course against the original strain of the coronavirus, the companies said Wednesday based on preliminary lab studies.

The drugmakers also said persons who received a primary vaccination series saw a 25-fold drop in neutralizing antibody levels against omicron compared to the original strain, indicating two doses may not be enough to protect against any infection.

However, the companies feel confident that two doses will protect against severe disease from omicron, given behavior in certain immune-memory cells from the vaccine.

“Although two doses of the vaccine may still offer protection against severe disease caused by the omicron strain, it’s clear from these preliminary data that protection is improved with a third dose of our vaccine,” Pfizer Chairman and CEO Albert Bourla said. “Ensuring as many people as possible are fully vaccinated with the first two dose series and a booster remains the best course of action to prevent the spread of COVID-19.”

The data is based on lab samples that tested blood samples from vaccinated persons against the variant. Drugmakers are rushing to figure out if existing vaccines are working against the variant or if an omicron-specific shot is needed.

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