Vaccines increase natural immunity in people infected with corona virus so much that they can also be newly protected when exposed to infections. This has been revealed in a study. Researchers at Rockefeller University in the US analyzed the antibodies present in the blood of corona patients and ascertained their origin. 63 persons involved in the study had corona corona last year.

Researchers looked at them and statistics show that over time the antibody's ability to produce 'memory B cells' of the immune system improved in terms of eliminating SARS-COV-2. A variety of antibodies are stored in memory B cells. The study revealed that a long-term protection system against viruses is developing within these people.

Researchers found that the antibodies were further aggravated in a group of 26 people who took at least one dose of moderna or pfizer vaccine. Research has also shown that MRN vaccines of Pfizer, Moderna produce more antibodies, while astrazeneca vaccines produce less. But, after one year, everybody will come down and then an additional booster dose can increase them. Even if a person is found to have less nutritional antibodies after the vaccine, he is effective in preventing the infection.

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