NEW DELHI: There is now clear experimental and clinical data supporting very high immune escape potential of Omicron, but initial estimates show the severity of illness being lower than what was seen in previous outbreaks, the Indian SARS-COV-2 Genomics Consortia INSACOG said in its latest bulletin citing global data.
In India, appropriate public health measures and investigations are being conducted for surveillance of Omicron, INSACOG said while noting that globally there appears to be
significantly reduced ability of vaccines or prior infection to protect against symptomatic infection by the Omicron variant.
“While Delta continues to be the most prevalent VOC globally, Omicron has completely displaced it in southern Africa and is on track to become the dominant variant in UK and
elsewhere,” INSACOG said in its bulletin on Wednesday.
The genomic consortium, citing global data, said there is now clear experimental and clinical data supporting very high immune escape potential of Omicron, which appears to be the
major component of its growth advantage over Delta. “Initial estimates of severity of illness have, however, been lower than seen in previous outbreaks. Whether these initial
observations are generalisable to older non-immune subjects is not clear and the threat level is still considered high,” it said.
The INSACOG reports genomic surveillance of SARS CoV-2 through sequencing of samples from sentinel sites and also detailed state-wise district analysis for some states.