Only a little while back the mainstream Covid narrative held that the vaccines did not decline in effectiveness. But, it was not long before boosters were needed, and now people are having up to four shots, such as in jurisdictions like Israel. This need for endless boosters is likely to continue as the vaccine efficacy in one study’s subjects dropped between 35 percent and 85 percent. It might soon be a shot every month. Perhaps one will need to walk around with a drip to have the vaccine loaded every day!
“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.
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.