Researchers at IIT Delhi have developed an RT-PCR-based assay for the detection of the Omicron (B.1.1.529.1) variant of the Covid-19.

The kit is based on detecting specific mutations, which are present in the Omicron variant and absent in other currently circulating variants of SARS-CoV-2.

Primer sets targeting these unique mutations in the S gene were designed for the specific amplification of either the Omicron variant or other currently circulating variants of SARS-CoV-2 and tested using real-time PCR.

Using synthetic DNA fragments, the assays were optimized to distinguish the wild-type from the Omicron variant in a dynamic range from 107 to less than 100 copies per reaction.

Currently, the identification or screening for Omicron is done world-wide using next-generation sequencing-based methods, which require over 3 days.

By using this RT-PCR-based assay, it will be possible to test for the presence of the Omicron variant within 90 minutes.

This can be used as a rapid screening assay for the identification and isolation of individuals with the Omicron variant.

IIT Delhi has filed an Indian patent application for the same and is in the process of initiating talks with potential industry partners.

IIT Delhi had earlier obtained ICMR approval (the first academic institution in India to do so) for an RT-PCR kit for the diagnosis of SARS-CoV-2, which was successfully launched in the market.

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