Pfizer Covid-19 vaccine reduces transmission after one dose: UK study

Preliminary signs are that the Pfizer vaccine provides protection against becoming ill from SARS-CoV-2, and also helps prevent infection, reducing the potential for the virus to be passed on to others.

2021-02-26 02:25:00 PM

Preliminary signs are that the Pfizer vaccine provides protection against becoming ill from SARS-CoV-2, and also helps prevent infection, reducing the potential for the virus to be passed on to others.

Preliminary signs are that the Pfizer vaccine provides protection against becoming ill from SARS-CoV-2, and also helps prevent infection, reducing the potential for the virus to be passed on to others.

The study and its results have yet to be independently peer-reviewed by other scientists, but were published online as a preprint on Friday.This suggests a fourfold decrease in the risk of asymptomatic Covid-19 infection among health-care workers who have been vaccinated for more than 12 days, and 75% protection, said Mike Weekes, an infectious disease specialist at Cambridge University's department of medicine, who co-led the study.

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The level of asymptomatic infection was also halved in those vaccinated for less than 12 days, he said.The UK has been rolling out vaccinations with both the Pfizer Covid-19 shot and one from AstraZeneca since late December 2020.“This is great news – the Pfizer vaccine not only provides protection against becoming ill from SARS-CoV-2, but also helps prevent infection, reducing the potential for the virus to be passed on to others,” Weekes said.

“But we have to remember that the vaccine doesn’t give complete protection for everyone.”Key real-world data published on Wednesday from Israel, which has conducted one of the world's fastest rollouts of Pfizer's Covid-19 vaccine, showed that two doses of the Pfizer shot cut symptomatic coronavirus cases by 94% across all age groups, and severe illnesses by nearly as much.  headtopics.com

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