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Omicron Sub-Variant BA.2.12 Found In Majority Of Delhi Samples, Could Be Behind Surge: Sources
Omicron sublineage BA.2.12 has been detected in a majority of the samples sequenced from Delhi in the first fortnight of April and it could be behind the recent surge in COVID-19 cases in the city, sources said Thursday.
However, an Indian SARS-CoV-2 Genomics Consortium (INSACOG) source has claimed that Omicron variant derivative BA.2.12.1 has also been found in a few samples in Delhi which are said to be contributing to the recent rise in cases in the US.
But officials have not confirmed that it indeed was found in some samples in Delhi.
An official source said, "New sub-variants BA.2.12 (52 per cent samples) and BA.2.10 (11 per cent samples) are showing high transmission and have been found in over 60 per cent of the total samples from Delhi sequenced recently."
"The BA.2.12 variant appears to have a growth advantage of about 30% to 90% per week over BA.2 (Omicron)," the source added.
Over 300 samples have been genome sequenced in Delhi in the first fortnight.
The official said the same sub-variants more or less have been found in samples sequenced in neighbouring districts in Uttar Pradesh and Haryana.
Delhi logged 1,009 fresh Covid cases on Wednesday, a 60 per cent jump from a day ago.
Explaining the surge in Delhi, a senior scientist said Omicron's reproductive number is 10 which has the highest transmissible level so its derivatives will also have the same transmissibility and will spread in absence of hand hygiene, and social distancing and masks.
Officials said that the top five states in terms of new cases reported are: Delhi (1009), Haryana (3103), Uttar Pradesh (1684), Maharashtra (1625) and Mizoram 103.
Disclaimer: The information provided in this article is for general informational and educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or a qualified healthcare provider with any questions you may have regarding a medical condition.
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