Pfizer COVID-19 booster shot extends strong protection, vaccine being updated to target Delta
Source: USA Today
A booster shot of the COVID-19 vaccine made by Pfizer and BioNTech strongly extends protection, a new study from the companies shows, and they are developing a vaccine targeted directly at the Delta variant, which first arose in India.
The companies say they have demonstrated that a third dose of their vaccine, given six months after the second, increases neutralizing antibodies five to tenfold against the original virus and the so-called Beta variant, which was first identified in South Africa. The booster was also found to be safe.
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The companies are also updating their vaccine, called BNT162b2, to directly address the Delta variant. They are currently producing material for a clinical trial, which they expect to begin in August, pending regulatory approvals.
Olivier Schwartz, head of the Virus and Immunity Unit, at Institut Pasteur in Paris, published a scientific article Thursday, showing that two doses of the Pfizer-BioNTech vaccine protects against the Delta variant, though a single dose does not.
Read more: https://www.msn.com/en-us/news/us/pfizer-covid-19-booster-shot-extends-strong-protection-company-says-vaccine-being-updated-to-target-delta-variant/ar-AALVYK3?li=BBnb7Kz
The irony is that anti-vaxxers get a self-fulfilling wish by depressing vaccinations, infections continue to spread, which allows for the continued development and spread of variants.
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