Positivity rates are soaring in those states, and public health experts say that the rising numbers most likely fall far short of giving the true picture in places where sickness and deaths caused by Covid-19 are harder to track.It seems the crisis is reaching a new phase.... The World Health Organization now says that a new variant of the virus detected in India, B.1. 167, may be especially transmissible, which is just adding to the sense of alarm. Every day the Indian media delivers a heavy d