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.

The findings offer a new perspective on one of the big unknowns about COVID-19 vaccines – the extent to which they prevent virus transmission – and could bolster Britain’s Prime Minister Boris Johnson’s plans to block all restrictions in England until the middle. June.

UK Health Secretary Matt Hancock quickly praised the results and urged people to continue coming to the vaccines when they were offered a shot by health authorities.

“We already know that vaccines save lives and that this study also cuts down the transmission of the deadly virus are the most real data in the world,” Hancock said in a statement.

“What’s more, vaccines protect you as the best way to get out of this pandemic and prevent someone in your home from getting infected,” he added.

‘Very promising’

The PHE study received more than 57,000 contacts in 24,000 homes, including a laboratory-confirmed case of COVID-19 that received the vaccine, compared to nearly one million unintegrated contacts.

PHE immunization chief Mary Ramsay said her findings were “very gratifying,” but also called on people who have been vaccinated to be careful to limit transmission.

“Even if you have been vaccinated, it is very important that you continue to act like a virus, practice good hand hygiene, and follow guidelines for social exclusion,” he said in a statement.

Naomi Forrester-Soto, a virologist at Keele University in the UK, also welcomed the data collected by the PHE as “very promising”.

“We weren’t sure if vaccines would be able to reduce transmission, so now it seems like the good news is that a single dose of the Pfizer-BioNTech or AstraZeneca vaccine works,” Forrester-Soto told Al Jazeera.

He added that research could be a key development, “to help people understand that they also protect people who are being cared for by getting vaccinated.”

The UK has one of the fastest spread of COVID-19 vaccines in the world. Take it 34 million adults so far they have received the first dose of vaccine and have completely inoculated a quarter of the adults.

The rapid immunization effort has created real-world data on how Pfizer and AstraZeneca shootings work outside of clinical trials, and earlier this month PHE said the spread prevented more than 10,000 deaths in people aged 60 and over by the end of March.