India: BA.2.75 Centaurus takes off in Dehli, masks mandatory again

Asia, BA.2.75, Coronavirus, Deaths, Facemasks, India, Infection, Omicron, Testing, Transmission

In Delhi, India, 2146 new cases of coronavirus were reported in the last 24 hours. The positivity rate has increased to nearly 18 percent. In the last 24 hours, 8 people have died of Covid in the city. Masking has been made mandatory, with a fine for those not complying. 



Cases of the BA.2.75 variant had remained stable across the globe, and had even declined in some areas, but there are indications that BA.2.75 may have picked up new mutations in the past couple of weeks which may  be giving it an edge in competing with other strains.



Mumbai may also be feeling the strain of the new Centaurus variant:


13th August 2022: BA.2.75 at more than half of all sequences in Delhi:

BA 2.75, a new Omicron sub-variant, has been detected in the majority of samples taken from most Covid-19 patients in Delhi, said the Lok Nayak Jai Prakash Narayan (LNJP) Hospital. The samples were sent for genome sequencing and analysed this week, news agency PTI reported quoting a senior official of the hospital on Thursday. The study involved 90 patients, and BA 2.75 is more transmissible than Omicron’s previous variants.

According to the official, over half of the samples have been detected with BA 2.75. report

13th August 2022: BA.2.75 at more than 80% of sequences in Haryana:

The BA.2.75 variant of Omicron has been found in 82% of the samples tested in Haryana recently and is believed to be behind the recent surge in Covid cases across the state.

Times of India report



This entire thread by Mike Honey is worth reading. It shows the stealthy advance of BA.2.75 in different countries, including Singapore and Australia:


A Twitter thread from Yunlong Richard Cao on how BA.2.75 is managing to outcompete BA.5:

From preprint: Characterizations of enhanced infectivity and antibody evasion of Omicron BA.2.75

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



Image by confused_me from Pixabay

** This post was originally published on August 12, 2022 **