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Covid: One dose of vaccine halves transmission – study
A single dose of a coronavirus vaccine can reduce household transmission of the virus by up to half, a study shows.
Those given a first dose of either the Pfizer or AstraZeneca vaccines – and who became infected three weeks later – were between 38% and 49% less likely to pass the virus on than unvaccinated people, PHE found.
UK Health Secretary Matt Hancock urged “everybody to get their vaccines as soon as they are eligible”.
In the study, protection against Covid was seen from about 14 days after vaccination, PHE said in a statement.
It added that this protection was on top of the reduced risk of a vaccinated person developing symptomatic infection in the first place which is around 60 to 65% – four weeks after one dose of either vaccine.
A dose of COVID vaccine halves transmission, research shows Coronavirus pandemic News
A new study by Public Health England has revealed the real impact of the plans made by Pfizer-BioNTech and AstraZeneca.
A single dose of coronavirus vaccines spread in England could reduce COVID-19 transmission by up to 50 percent, a new study showed on Wednesday.
According to the Public Health England (PHE) study, those infected with Pfizer-BioNTech or AstraZeneca vaccines three weeks earlier had 38% and 49% less chance of passing the virus to other contacts than at home. they were without vaccines.
The shots also allow a vaccinated person to develop a symptomatic infection to begin with, as the risk is reduced by about 60-65 percent within four weeks of taking the dose of each vaccine.
A single dose of the coronavirus vaccines deployed in England can cut transmission of COVID-19 within households by up to 50 percent, data from a new study showed on Wednesday.
The Public Health England (PHE) research found that those who became infected three weeks after receiving their first jab of the Pfizer-BioNTech or AstraZeneca vaccines were between 38 and 49 percent less likely to pass the virus on to their household contacts compared to others who were unvaccinated.
The shots also stop a vaccinated person developing symptomatic infection to start with, reducing the risk by about 60-65 percent from four weeks after one dose of either vaccine.
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