Burla CEO said the company is working on another version, given the spread of the South African and Brazilian mutations • The current vaccine is effective against them - but it is not clear how much
The American pharmaceutical company Pfizer has announced that it is developing a "reinforcement" vaccine, which will help its vaccine against the corona also protect against the new mutations, in light of the spread of the South African and Brazilian mutations.
Photo: Pfizer
"Whenever a new variant appears we should be able to test whether our vaccine is effective against it or not," said Pfizer CEO Albert Burla. Added.
Pfizer's announcement comes two days after the modern company said they were working to improve the vaccine the company produces so that it would be effective against the South African strain of the corona virus.
According to tests conducted by the company in recent weeks, it estimates that the vaccine it produces is effective against the British mutation, as well as against the South African mutation, but the effectiveness of the vaccine against the latter strain is less.
According to the test results, although the antibodies that the vaccine produces are less adapted to the infectious strain, they are still sufficient to bring about the vaccine against the disease.
The company stated that the concern is that the effect of the vaccine against the South African strain will be shorter.
The company explained that they were taking this course "out of caution, and taking advantage of the flexibility of our vaccination method", adding: "I am progressing in developing a version of the vaccine that will work better against the strain discovered in South Africa and testing whether Also against future varieties that have not yet been discovered. "
