One dose of a Covid vaccine can almost halve transmission, study finds – CNBC

ReutersLONDON– A single dose of a coronavirus vaccine can reduce transmission within a family by up to half, a study by Public Health England has found.People who do end up being contaminated with the coronavirus 3 weeks after receiving a single dosage of the Pfizer-BioNTech or AstraZeneca-University of Oxford vaccine were between 38% and 49% less likely to pass the virus on to their household contacts than those who were unvaccinated, the PHE research study found.Protection was seen from around 14 days after vaccination, with similar levels of security regardless of age of cases or contacts.This security is on top of the minimized threat of an immunized individual establishing symptomatic infection in the first location, which is around 60% to 65%– 4 weeks after one dose of either vaccine, PHE noted.”I advise everybody to get their vaccines as soon as they are eligible and make sure you get your second dose for the greatest possible security,” he added.Both the Pfizer-BioNTech and AstraZeneca vaccines are being extensively deployed in the U.K., with the Moderna vaccine likewise now added to the immunization program.The vaccine rollout has been a standout success in Britain, and one silver lining following the destruction of the pandemic, which has triggered over 127,000 deaths so far in the country.The U.K has seen deaths, hospitalizations and cases fall dramatically considering that its rollout started in December, alongside rigorous lockdown procedures. To date, practically 34 million U.K. grownups have had a first dosage of a vaccine and over 13 million have actually had 2 doses, federal government information shows.The PHE study kept in mind that households are high-risk settings for transmission and provide early proof on the impact of vaccines in avoiding onward transmission.