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One shot of Pfizer, Moderna Vaccines confers 80 percent immunity: CDC

*Health officials yet recommend getting the full two shots of the Pfizer and Moderna COVID-19 Vaccines, as the Centers for Disease Control and Prevention study found that the effectiveness rose to 90 percent two weeks after the second dose

Isola Moses | ConsumerConnect

As vaccinations against the disruptive Coronavirus pandemic continue around the world, a fresh study by the US Centers for Disease Control and Prevention (CDC) has discovered that just a dose of the vaccines produced by either Pfizer and Moderna are 80 percent effective in preventing COVID-19 infections.

It was gathered that the study, which was conducted among nearly 4,000 vaccinated health care workers with no previous documentation of COVID-19 infection, found that one shot of either vaccine conferred significant immunity two weeks later.

Nonetheless, health officials still recommend getting the full two shots of the vaccines, as the study found that the effectiveness rose to 90 percent two weeks after the second dose.

The CDC wrote: “These findings indicate that authorised mRNA COVID-19 vaccines are effective for preventing SARS-CoV-2 infection, regardless of symptom status, among working-age adults in real-world conditions.

“COVID-19 vaccination is recommended for all eligible persons.”

Experts say the study’s findings could help stretch the vaccine supply and get more Americans at least partially vaccinated at a faster pace.

However, Dr. Anthony Fauci, foremost American and infectious disease expert as well as other top health officials has stated that Americans should definitely prioritise returning for a second shot.

Dr. Paul Offit, a voting member of the FDA’s Vaccines and Related Biological Products Advisory, told CNBC that the second dose of the vaccines from both Pfizer and Modern contain a host of “virus-specific neutralising antibodies that is almost 10 growth fold greater than after the first dose.”

Offit said the study’s findings are generally “good news,” but he noted that other studies show that the second shot appears to instill longer-lasting immunity to the virus.

Meanwhile, CDC Director Dr. Rochelle Walensky at a media briefing Monday, March 29 warned of ‘impending doom’, as the findings come as health officials express concern about a reversal in the downward trend of COVID-19 infections.

Dr. Walensky said the US is heading towards “impending doom” as daily infections rise again.

She said: “We have so much to look forward to, so much promise and potential of where we are and so much reason for hope, but right now I’m scared.”

Cases have risen over the last week or so ─a marker that typically predicts that they will “surge and surge big” shortly thereafter, said she.

Walensky urged Americans to persevere and get vaccinated as soon as they are eligible.

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