Nearly 80% of Covid-positive samples sent for genome-sequencing by laboratories in the city have been found to contain the BA.2 sub-lineage of the Omicron variant, nicknamed the 'stealth version', as it cannot be picked up in RT-PCR tests and requires genome-sequencing.
Read moreThere are 3-4 sub-lineages of Omicron variant of coronavirus. These sub-lineages could be different when it comes to diagnosis but their epidemiological behaviour is same.
A government health expert on Tuesday said that IIT's modelling has shown Covid cases will increase rapidly in the coming days.
Read moreMost people contracting Covid-19 now are reporting lesser-known symptoms such as acute pain in the leg and an itchy throat for two days after being infected.
Read moreNearly seven out of 10 people who died in the city due to Covid-19 in December had not taken two doses of vaccines, Greater Chennai Corporation officials said on Monday.
Read more