According to the latest research by the Pasteur Institute of France published in the famous science magazine Nature, a single dose of the corona vaccine does not usually affect the beta and delta variants of the virus. This research was done on those taking AstraZeneca and Pfizer-BioNtech vaccines. In India, the AstraZeneca vaccine is being made under the name Covishield at the Serum Institute of India.
In contrast, the immune systems of people taking both doses of these two vaccines efficiently neutralized the delta variant. Olivier Schwartz, lead author of the research and head of the Virus and Immunity Unit at the Pasteur Institute in Paris, says the discovery is good news.
According to research, only 10% of people who got a single dose of AstraZeneca or Pfizer-BioNtech vaccine could thwart the alpha and delta variants of the corona. At the same time, 95% of people who received both doses of either of these vaccines failed the delta and beta variants. Researchers say this is a big difference.
It is clear that if the power to fight the delta or beta variant is to be created, then both doses of the corona vaccine are necessary. Or rather, after getting both doses of Covishield in India, 95% of the people will have the strength to thwart the delta variant.
Antibodies of those who beat Corona are 4 times less effective French researchers also examined people who did not get the vaccine, but had won the battle against Corona. According to research, the antibodies produced in such people were found to be four times less effective against the delta variant of the corona than the common corona.
Only after such people got a dose of the vaccine, the strength of their antibodies increased in a wonderful way.
Clearly, people who have once defeated Corona should not be reassured that they now have antibodies in their bodies, because these antibodies or resistance are four times less effective against the delta variant.
Pfizer and BioNtech making special vaccines against the Delta variant Pfizer and BioNTech are making a special vaccine against the Delta variant of coronavirus. Both the companies made this announcement on Thursday. Both companies can start clinical trials of these vaccines in August.
The results of the third ie booster dose were also very good, Pfizer and BioNtech told in a news release on Thursday that applying the third dose of their vaccine has also given very good results. However, both the companies did not release the data related to these results.
The companies claim that such a booster dose makes the antibodies produced against the original virus and beta variant of the corona up to five to ten times stronger. It is believed that both companies will submit the data to the US Food and Drug Administration (US-FADA) in the next two to three weeks.
ICMR had also told both doses of the vaccine to be effective. These results of French researchers are similar to the research of ICMR (Indian Council of Medical Research) earlier this week, which said that two doses of corona vaccine are delta variants. Gives 95% protection. At the same time, for those taking a single dose, this figure drops to 82%.
The delta variant that caused the dreaded second wave in India has spread to 98 countries so far. These days it is creating a ruckus in America, Malaysia, Portugal, Indonesia and Australia. At the beginning of the year, it infected thousands of people in Britain and Europe.
At present, it is the dominant variant, that is, the most commonly found corona variant in America. Of all the new cases found there, 51.7% of the cases are of the delta variant. Earlier there was the Alpha dominant variant.
The delta variant of the coronavirus was first found in India. It is believed to spread 60% faster than the alpha variant and twice as fast as the original coronavirus, i.e. 100% faster.
Despite the claim of the world's largest vaccination campaign, till Friday (July 9) in India, only 4.9 population has received both doses of the corona. At the same time, 21% of people have received a single dose of the vaccine. On the other hand, in the US, 55% of the population has been vaccinated in one dose and 48% of people have been fully vaccinated.
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