Fully vaccinated people three times less likely to test positive for coronavirus
Fully vaccinated people are three times less likely than unvaccinated people to test positive for Covid-19, a study of almost 100,000 people has found.
The findings, published by Imperial College London on Wednesday, August 4, also showed that infections have increased fourfold compared to the end of May – however this growth appears to be slowing.
It is the latest report in REACT-1, one of the largest studies into coronavirus infections in England, conducted by the university in partnership with market research company Ipsos MORI.
Over 98,000 volunteers took part in the study in England between June 24 and July 12.
It found 1.21% of those who were unvaccinated tested positive for Covid-19, compared to 0.40% of those who were fully vaccinated. Analysis by Imperial College suggests doubled vaccinated people are less likely to pass on the virus to others.
Researchers also found that even if double-jabbed people come into contact with someone who has Covid-19, only one in 25 (3.84%) will go on to catch it themselves – compared to 7.23% of unvaccinated individuals.