Pfizer COVID-19 Vaccine Reduces Transmission After 1 Dose, Study Finds

A single dose of Pfizer and BioNtech’s COVID-19 vaccine could significantly reduce the risk of transmission of the virus, a U.K.  study ...



A single dose of Pfizer and BioNtech’s COVID-19 vaccine could significantly reduce the risk of transmission of the virus, a U.K. study has found.

Researchers analyzed results from thousands of COVID-19 tests carried out each week as part of hospital screenings of healthcare staff in Cambridge, England.

Mike Weekes, an infectious disease specialist at Cambridge University’s department of medicine, who co-led the study, said: “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.

“But we have to remember that the vaccine doesn’t give complete protection for everyone.”

The study also found a single dose of the shot cuts the number of asymptomatic infections.

“Our findings show a dramatic reduction in the rate of positive screening tests among asymptomatic healthcare workers after a single dose of the Pfizer-BioNTech vaccine,” said Nick Jones, an infectious diseases specialist at Cambridge University Hospital, another co-lead on the study.

After separating the test results from unvaccinated and vaccinated staff, Jones’ team found that 0.80% of the tests from unvaccinated healthcare workers were positive.

This compared with 0.37% of tests from staff less than 12 days post-vaccination – when the vaccine’s protective effect is not yet fully established – and 0.20% of tests from staff at 12 days or more post-vaccination.

The study and its results have yet to be independently peer-reviewed by other scientists, but were published online on Friday.

This suggests a four-fold decrease in the risk of asymptomatic COVID-19 infection among healthcare workers who have been vaccinated for more than 12 days, and 75% protection, said Weekes.

The level of asymptomatic infection was also halved in those vaccinated for less than 12 days, he said.

Britain has been rolling out vaccinations with both the Pfizer COVID-19 shot and one from AstraZeneca since late December 2020. The U.S. is using the Pfizer-BioNTech shot and a vaccine by Moderna Inc. in its vaccination program.

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 COVID-19 cases by 94% across all age groups, and severe illnesses by nearly as much.

A HuffPost Guide To Coronavirus

As COVID-19 cases rise, it’s more important than ever to remain connected and informed. Join the HuffPost community today. (It’s free!)

Source link

COMMENTS

Name

Africa,777,Americas,4048,Art & Culture,14516,Arts,6389,Arts & Design,1574,Asia,3168,Automobile,448,Baseball,554,Basketball,453,Books,3781,Business,5224,Celebrity,2633,Cricket,648,Crime,158,Cryptocurrency,1446,Dance,630,Defense,836,Diplomatic Relations,2496,Economy,1064,Editorial,260,Education,1162,Elections,308,Energy & Environment,3042,Entertainment,22383,Environment,3524,Europe,4117,Faith & Religion,235,Family & Life,817,Fashion & Style,3145,Finance,19477,Food & Drink,3634,Football,1068,Games,97,Gossip,10289,Health & Fitness,3973,Health Care,925,Hockey,215,Home & Garden,920,Humour,994,Latin America,49,Lifestyle,16627,Media,527,Middle East,1449,Movies,1618,Music,2541,Opinion,2833,Other,11611,Other Sports,4926,Political News,11324,Political Protests,2324,Politics,17534,Real Estate,1746,Relationship,78,Retail,3116,Science,2533,Science & Tech,9703,Soccer,197,Space & Cosmos,318,Sports,11846,Technology,3328,Tennis,540,Theater,1612,Transportation,313,Travel,2489,TV,3583,US,13,US Sports,1481,Video News,3531,War & Conflict,1069,Weird News,998,World,15968,
ltr
item
Newsrust - US Top News: Pfizer COVID-19 Vaccine Reduces Transmission After 1 Dose, Study Finds
Pfizer COVID-19 Vaccine Reduces Transmission After 1 Dose, Study Finds
https://img.huffingtonpost.com/asset/6038ec7e260000c1037f7704.jpg?cache=rxjjfaqcf8&ops=1778_1000
Newsrust - US Top News
https://www.newsrust.com/2021/02/pfizer-covid-19-vaccine-reduces.html
https://www.newsrust.com/
https://www.newsrust.com/
https://www.newsrust.com/2021/02/pfizer-covid-19-vaccine-reduces.html
true
732247599994189300
UTF-8
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS PREMIUM CONTENT IS LOCKED STEP 1: Share to a social network STEP 2: Click the link on your social network Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy Table of Content