Pfizer asserts that it’s covid-19 vaccine had prevented 91% of cases in first 6 months

The reliance of people on covid vaccine to battle the infection has grown enormously. From the history of vaccine injections, it is evident that certain side effects are bound to occur. In the recent inoculation supply, none was serious – a common one was some soreness around the injection site, the UK researchers who analysed the feedback found.

Now Pfizer asserts, its vaccine injection had been preventing 91% of coronavirus cases in the six months after individuals are immunised. A study shows even people in their 80s and 90s are generating good levels of antibodies post receiving both doses of the vaccine with almost no side-effects.

Only 63% of them, nonetheless, also release the T-cells that help maintain those antibodies for longer period of time due to their protective role. From the recent research by National Institute of Allergy Diseases (NIAD), it is known that T cells also recognise the new viral variants.

Pfizer analysed data from 46,000 people who have participated in the clinical trial, exactly six months after their second dose. It also assessed data of 800 trial participants in South Africa and concluded the vaccine was equally efficacious against the variant reported there.

The precise efficiency rate of the Pfizer’s vaccine remained intact after the second dose and against the new variant in South Africa claims the firm.