Covid Vaccines: Latest Study Shows Massive Effectiveness Decline In Time

Covid Vaccines: Latest Study Shows Massive Effectiveness Decline In Time
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It seems that the covid vaccines are not as effective as previously thought. According to the latest reports coming from Yahoo News, a new study is showing that the vaccines’ effectiveness is dropping in time.

It’s been revealed that the Delta variant became the dominant strain of coronavirus across the United States, and all three covid vaccines available to Americans lost some of their protective power.

Vaccines’ effectiveness drops 

It’s been also revealed that the efficacy among a large group of veterans dropping between 35% and 85%, according to a new study.

Researchers analyzed data from March and said the three vaccines were roughly equal in their ability to prevent infections. But over the next six months, that changed dramatically.

 

Yahoo News notes that “By the end of September, Moderna’s two-dose COVID-19 vaccine, measured as 89% effective in March, was only 58% effective.”

The same article noted the following: 

“The effectiveness of shots made by Pfizer and BioNTech vaccine, 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 results were published Thursday in the journal Science.

Covid does not infect brain cells 

It’s been just revealed that the novel coronavirus doesn’t infect human brain cells. This is according to a new study that’s been published in the journal Cell.

Credit: Pixabay
Credit: Pixabay

These new findings are raising hopes that the damage caused by the novel coronavirus might be more superficial and reversible than it’s been previously believed. 

It’s extremely important to note the fact that this new study contradicts earlier research that suggested the virus infects neurons in the membrane that lines the upper recesses of the nose.

Stay tuned for more news about coronavirus and potential treatments/vaccines, and make sure to stay safe. 


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Rada Mateescu

Passionate about subjects from the science and health-related areas, Rada has been blogging for about ten years and at Health Thoroughfare, she's covering the latest news on these niches.

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