The analysis revealed that Omicron BA.1 has less protection against previous infections than other variants.
Digital Desk: A new study found that those who had Covid-19 infection before had an 88% decreased chance of hospitalization or fatality during reinfection in the first 10 months compared to those who were uninfected.
According to The Lancet, "Protection remained consistently good, with 90% for Covid-19 ancestral, Alpha, Beta, and Delta and 88% for Omicron BA.1."
As many as 65 research, carried out in 19 nations, including India, examined the impact of a prior infection on a Covid-19 patient for the study published on The Lancet on Thursday. A common finding was discovered after analysis of the results. The analysis revealed that Omicron BA.1 has less protection against previous infections than other variants.
The protection against reinfection from a pre-Omicron variety, according to the study, was approximately 85% at one month and 79 % after ten months. However, at one month and about ten months, the protection from a pre-Omicron version against reinfection from the Omicron BA.1 variant was 74% and 36%, respectively. The researchers do, however, advise against dissuading people from getting vaccinated because they believe it to be the most secure method of building immunity.
According to the study's lead author, Dr. Stephen Lim of the Institute for Health Metrics and Evaluation (IHME) in the US, vaccination is the safest way to build immunity, while building immunity naturally must be weighed against the risks of serious illness and death brought on by the initial infection.
Nevertheless, renowned virologist Dr. Gagandeep Kang and ICMR's Dr. Sanjay Pujari pointed out that populations all over the world may have hybrid immunity, which was not taken into account in the study.
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