Title : Covid Vaccines Are Losing Significantly Their Effectiveness With Time
link : Covid Vaccines Are Losing Significantly Their Effectiveness With Time
Covid Vaccines Are Losing Significantly Their Effectiveness With Time
L.A. Times: Study shows dramatic decline in effectiveness of all three COVID-19 vaccines over time
As the Delta variant became the dominant strain of the coronavirus across the United States, all three COVID-19 vaccines available to Americans lost some of their protective power, with vaccine efficacy among a large group of veterans dropping between 35% and 85%, according to a new study.
Researchers who scoured the records of nearly 800,000 U.S. veterans found that in early March, just as the Delta variant was gaining a toehold across American communities, the three vaccines were roughly equal in their ability to prevent infections. But over the next six months, that changed dramatically.
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Update: Study Reveals 'Dramatic' Decline In All Three COVID-19 Vaccines' Efficacy Over Time (Zero Hedge).
WNU Editor: This is sobering (from L.A. Times): ....
.... By the end of September, Moderna’s two-dose COVID-19 vaccine, measured as 89% effective in March, was only 58% effective.
The effectiveness of shots made by Pfizer and BioNTech, which also employed two doses, fell from 87% to 45% in the same period.
And most strikingly, the protective power of Johnson & Johnson’s single-dose vaccine plunged from 86% to just 13% over those six months.
The findings were published Thursday in the journal Science .... SARS-CoV-2 vaccine protection and deaths among US veterans during 2021 (Science).
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