Natural immunity due to COVID-19 infection provides strong protection against reinfection and serious illness for several months after initial infection, but immunity wanes over time, a new study has found.
Most comprehensive study to date provides evidence on natural immunity protection by COVID-19 variant and how protection fades over time outbreaknewstoday.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from outbreaknewstoday.com Daily Mail and Mail on Sunday newspapers.
A previous infection with COVID-19 can provide an 88 per cent protection against severe disease and death in the case of reinfection even 10 months later, according to a new study, but pre-Omicron infections provide much less protection against Omicron variants.
Researchers say we should recognise the natural immunity in people who have recently been infected with COVID-19, but warn that their findings should not discourage vaccination because it is the safest way to acquire immunity.
London, Feb 17: For someone previously infected with COVID-19, their risk of hospitalization or death is 88 per cent lower for at least 10 months compared to those not previously infected, according to a study published in The Lancet. The systematic review and meta-analysis included 65 studies from 19 countries including India and evaluated the effectiveness of past infection by outcome (infection, symptomatic disease, and severe disease), variant, and time since infection, the study said. Studies examining natural immunity in […]