India: BA.2.75 already at 60% of sequences in Maharashtra

Asia, BA.2.75, BA.5, Coronavirus, Genome, India, Infection, Omicron, Testing, Transmission, Vaccine Breakthrough

More details of the extraordinary growth of the BA.2.75 Omicron subvariant in India today.

An analysis by Josette Schoenmakers has shown that BA.2.75 (nicknamed “Centaurus”) has gone from 0% of genome sequences to 60% of sequences in just four weeks in Maharashtra, India. BA.5 now represents just 3% of sequences in Maharashtra, with BA.2.75 effectively skipping a generation to become dominant before BA.5 took hold.

Although the number of genome sequences is still too low to make a definitive call, this increase is another indicator of just how likely this subvariant is to cause severe problems in countries still experiencing the full force of the Omicron BA.5 wave. It’s just a matter of days before we start to see BA.2.75 appearing in the epidemiological reports from other countries.


This is a very important thread by Josette Schoenmakers, definitely one of those “Wow!” moments:


UPDATE 1 – 9th July 2022


UPDATE 2 – 9th July 2022

Raj Rajnarayanan’s BA.2.75 data visualizer is showing an uptick in growth of BA.2.75 in the UK, Week 27 figures are lower than week 26 due to incomplete data:




Omicron BA.2.75 – a potential successor to BA.5



** This post was originally published on July 9, 2022 **