Report: COVID vaccine antibody levels drop 'nearly 10-fold' after about six months
Talk of booster shots has been growing in recent months.
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A preliminary study this week claimed to have found a steep reduction in the number of coronavirus-fighting antibodies in patients roughly half a year after they received the COVID-19 vaccine.
Researchers "analyzed blood samples from 46 healthy, mostly young or middle-aged adults after receipt of the two doses and again six months after the second dose," Reuters reported this week.
The study indicated that "vaccination with the Pfizer-BioNtech vaccine induces high levels of neutralizing antibodies against the original vaccine strain, but these levels drop by nearly 10-fold by seven months," two of the researchers told the news wire.
The study, which has not yet been certified by peer review, comes amid growing talk of the possible need for a booster shot of the COVID-19 vaccine to ensure a robust immune response.
The study determined that "administering a booster dose at around 6 to 7 months following the initial immunization will likely enhance protection against SARS-CoV-2 and its variants."
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