Indian health authorities are closely monitoring the emergence of a new subvariant of the coronavirus, named JN.1, which has sparked concern across the nation. So far, 21 cases of the JN.1 subvariant have been identified, with 19 cases reported in Goa and one each in Kerala and Maharashtra. The Indian Council of Medical Research (ICMR) is actively conducting genome sequencing to better understand the characteristics of this new strain. India reported a surge in Covid-19 cases on Thursday, registering 358 new infections in the last 24 hours, as per data released by the Union Health Ministry.