How fast is the spread of infection in the second wave?
The second wave is spreading much faster than the first, a surge that has long overshot last year's peak and is still climbing. The increase has been driven by lax behaviour as well as the emergence of new strains like the British variant and Indian "double mutant" strain.
Dr Bhramar Mukherjee, the chair of biostatistics at the University of Michigan, has been tracking India's pandemic closely. She found that the highest 30-day relative increase in cases during the first wave (identified as the period between June 3 last year and Feb 14 this year in her analysis), was from 13,560 on June 22 to 45,601 on July 22, a jump of more than three times.