Covid-19 wave emerges, while China battles a resurgence of the pandemic fueled by the Omicron variants, here is a guide to which mutated variant of the SARs-COV-2 is likely to affect your Upper Respiratory tract and the Lower Respiratory Tract and how severe can it get. General Trivia Preliminary evidence suggests there may be an increased risk of reinfection with Omicron (ie, people who have previously had Covid-19 could become reinfected more easily with Omicron), as compared to other variants of concern.
Reinfection with BA.2 following infection with BA.1 has been documented, however, initial data from population-level reinfection studies suggest that infection with BA.1 provides strong protection against reinfection with BA.2, at least for the limited period for which data are available, says WHO.
While the heavily mutated strain is believed to be highly transmissible, the Delta variant, which was one of the driving forces of the second Covid-19 wave, is still the most dominant strain across the globe.
However, both these WHO-declared 'variants of concern', although very contagious, are said to affect the body in a different manner.