Omicron Infection May Protect You Against Delta, And Other Variant of Concerns: ICMR

An Indian Council of Medical Research (ICMR) study says that individuals infected with omicron have significant immune responses which could neutralise not only Omicron but also other variants of concern, including the most prevalent Delta variant.

The study analysed the IgG and neutralising antibodies (NAbs) against B.1, Alpha, Beta, Delta, and Omicron variants with the sera of individuals infected with the Omicron variant (B.1.1529 and BA.1). It suggests that the immune response induced by the Omicron could effectively neutralise the Delta variant, making re-infection with the Delta variant less likely and displacing this variant as the dominant strain.