Natural Immunity Overpowered Vaccines During Delta Wave In USA: Study

People who were unvaccinated but survived COVID-19 were better protected than those who were vaccinated and not previously infected, suggested a Study. The analysis was also carried out during the Delta variant infection among 1 million people, who tested positive in New York and California, between May 30 to November 30, 2021. The unvaccinated people are at higher risk compared to vaccinated people, said the authors of the research.