A new study in England found that people who have received a two-dose coronavirus vaccination have a reduced chance of contracting the delta variant even if they are fully vaccinated.Nearly 100,000 people took COVID-19 home swabs between June 24th and July 12th. The study included 527 individuals who tested positive for coronavirus. 254 samples were genetically analysed. All sequenced samples proved to be highly transmissible delta variant.After adjusting for age and other factors, the researchers found that people who had received two doses of vaccine were 49% more likely to be positive for coronavirus even without symptoms than people who were not vaccinated. Vaccinated people were 59% less likely also to have symptoms.Similar: Delta variant: All your questions answeredThese findings were published as a preprint, and have not been peer-reviewed yet. They are the latest results of Imperial College London's REACT-1 coronavirus monitoring program.Paul Elliott, director of Imperial's School of Public Health's REACT program, stated in a statement that "These findings confirm our prior data showing that both dosages of a vaccine offer excellent protection against getting infected." Researchers didn't unravel the effectiveness of particular vaccines.These findings are inconsistent with other studies. Public Health England conducted a study and found that Pfizer-BioNTech vaccine is 88% effective against symptoms caused by the delta variant. This compares with 93% effectiveness against the alpha variant which was the dominant variant. The two-dose AstraZeneca vaccine proved 60% effective against the delta variant compared to 66% for the alpha variant. Live Science previously reported this.Early data from Israel showed that the Pfizer BioNTech vaccine was 64% effective against the symptomatic diseases caused by the Delta variant. Data from Canada, however, found it to be 87% effective against the symptomatic diseases according to an internal presentation of the Centers for Disease Control and Prevention. Newer data from Israel showed that the Pfizer BioNTech vaccine against Delta was only 39% effective. However, it is still 88% effective against hospitalizations and 91% protected against severe illness according to CNBC.A new study found that people who were vaccinated had an average lower viral load, which means they are likely to shed less virus and are less contagious. This result is different from previous data which suggested similar viral loads in unvaccinated individuals and those who have tested positive for the delta variant (so-called breakthrough case), Live Science reported.Professor of infectious disease dynamics at Imperial College London Steven Riley stated that the delta variant is highly infectious. We need to understand how infected fully vaccinated persons become. This will allow us to predict the future. Our findings have helped to build a better picture.According to the statement, the researchers found that trends between hospitalizations and infections, which had been declining in the spring, were now converging. This could be because the dominant variant switched from alpha to Delta and that younger people are more likely to become hospitalized.The highest incidence of infection was seen in young people aged 13-24, while those 75 years and older had the lowest. Riley said that approximately 50% of infections were in children aged 5-24, even though this group makes up less than 25% of the population.Sajid Javid, U.K. Health and Social Care Secretary, stated in the statement that "Today's Report shows the importance to take personal responsibility by self-isolating when you are contact traced and getting tested if symptoms occur and wearing face covers where appropriate." I urge everyone who has not received a vaccine to have it jabbed. The vaccines are safe and effective.Original publication on Live Science
