Data shows that India needs two doses of vaccine to protect the variants strongly

According to two people with preliminary data, a new British government study shows that two doses of the Covid-19 vaccine are needed to provide strong protection against the first coronavirus variants discovered in India to prevent symptomatic coronavirus infections.

According to data from Public Health England, the two doses of vaccine provided 81% protection against the B. 1.617.2 variant found in India and 87 against the B.1.1.7 strain first discovered in Kent in south-east England. %protection of. Attended the government’s Emerging Respiratory Virus Threat Advisory Group (Nervtag) meeting.

Two people who attended the Nervtag meeting on Friday said that data showed that one dose of the vaccine can prevent 33.6% of B.1.617.2 symptomatic infections, while 51% prevent B.1.7.7 symptoms.

According to “Financial Times” analysis, this shows that compared with B.1.1.7, the single-shot B.1.617.2 protection is 35% less.

The PHE data comes from the aggregated data prodded by BioNTech/Pfizer and Oxford/AstraZeneca.

B. The rapid spread of 1.617.2 in England’s pockets has put the country’s road map into question due to a lockdown. The next phase is scheduled to take place on June 21.

PHE said: “Scientists from Public Health England are evaluating the effectiveness of the vaccine against the B. 1.617.2 variant of Sars-Cov-2. We will release the results of the evaluation in due course.”

The new PHE study may emphasize taking two doses of the Covid-19 vaccine to prevent B.1.617.2. The importance of.

The government last week reduced the dose interval for people over the age of 50 from 12 to 8 weeks to ensure that the most vulnerable people in the UK receive comprehensive vaccine protection as soon as possible. It also added vaccination in B. 1.617.2 hot spots (such as Bolton and Blackburn and Darwen).

Neil Ferguson, an epidemiologist at Imperial College London, presented two models at the neurolabeling conference on Friday that support the new PHE study, one of which shows that a single vaccine dose reduces the effectiveness of B by approximately 50% . 1.617.2 Compared with B.1.1.7, the other is reduced by 20%.

The number of reduced efficacy matches the estimated value of the B.1.351 variant first discovered in South Africa, where a single dose of BioNTech/Pfizer vaccine was found to only provide 17% protection against confirmed Covid-19 infection, which rose to It accounts for 75% after two doses.

British scientists have been racing to study that B. 1.617.2 is more communicative than other forms of circulation (most notably B.1.1.7).

The model released by government consultants last week indicated that its spreadability may be about 50% higher than that of B.1.1.7, although last week’s new data suggests that its spreading power may not be so high.

Government data released on Friday from Bolton pointed out that the vaccine has been continuously protected, and the incidence of Covid-19 is much lower among the elderly who prioritize the use of jabs.

According to the National Bureau of Statistics, the overall number of coronavirus infections in the UK has increased slightly in the past week.