One COVID Vaccine Dose Cuts Transmission By 50% Matt Hancock Confirms

By Rachael Grealish

Just one dose of a COVID-19 vaccine reduces risk of household virus transmission by 50 percent , Matt Hancock has confirmed.

Speaking from Downing Street today, Wednesday April 28, the Health Secretary led the Coronavirus conference alongside deputy CMO Jonathan Van-Tam (JVT) and NHS England’s Dr Nikki Kanani.

Hancock spoke not only about the vaccines effectiveness of transmission, but also ‘real world impact’ of the vaccine’s protection for the receiver of the jab.

“This new data looked at people who tested positive after one dose of the vaccine and found they were up to 50 percent less likely to pass on the disease to someone else in their household,” he said.

“And we’re looking at whether the second dose will have an even bigger effect. We know that indoor settings have the highest risk of transmission so these results are really encouraging in terms of the impact of the vaccine reducing transmission.

“We’re finding out more and more about the different layers of protection you get from a vaccine and how it’s impacting in the real world.”

The Health Secretary summarised a person gets around two thirds protection against catching the disease, at all, around four fifths reduction in likelihood of ending up in hospital, and around 85 percent protection from dying of COVID.

He continued: “That’s the protection you get from one dose. In addition to all that you’re up to half as likely to pass it on to somebody else you live with.“

“We expect the benefits to be even greater after two doses and we’re monitoring that through. But what this means is the evidence is stacking up that the vaccine protects you, it protects your loved ones and it is the way out this pandemic.“

“The overall effectiveness of the vaccination programme comes from just two things; one, how effective the vaccine is, and two, how many people get the jabs.”

Professor JVT also spoke about the transmission rates as Public Health England published findings of the HOSTED study confirming one dose can cut household transmission by half.

He these figures are probably conservative estimates and once people have had a second dose, the impact should be stronger.