Amid signs of the pandemic’s second wave reaching its last leg—cases in the city have remained less than 300 for the past two weeks—about 90 per cent of the fresh infections are being reported from high-rises. Civic officials say families are mistaking COVID for seasonal flu and go for the test only after a few days, ending up infecting more members.    

In the first wave, most cases had been found in slum pockets, but the start of the second wave, which was in February, threw up a different trend, with a large number of people in non-slum areas contracting the virus. In the last citywide sero survey, it had been found that antibodies in the slum population had decreased.