India: First Delta/BA.2 recombinant recorded in Karnataka

Asia, BA.2, Coronavirus, Delta, Deltacron, Evolution, India, Omicron, Recombination, Transmission

The first ever Deltacron recombinant combining Delta and Omicron BA.2 has been identified in a sequence from Karnataka, India. Deltacron recombinants identified to date have combined Delta with Omicron BA.1 or BA.1.1.

The recombinant hasn’t been formally named yet as there is only a single example, but, as the scientist who spotted it, Cornelius Roemer, says, it’s “Potentially worth keeping an eye on”

“I wouldn’t open issues for singlets, but this one is interesting because it’s the first possible Delta-BA.2 recombinant I’m aware of. It looks clean to me, with a single breakpoint at the start of S1.”

hCoV-19/India/KA-CBR-1402CTD094/2022 EPI_ISL_10306555 2022-02-11

Potentially worth keeping an eye on

From Cornelius Roemer at Gisaid – issue #484


Things seem fairly quiet for Covid in Karnataka at the moment:

2-04-2022 HMB English



Meanwhile, BA.2 activity is off the charts:




Recombination: Details on XD, XE and XF recombinants by Tom Peacock

** This post was originally published on April 2, 2022 **