Bengal on Thursday reported 660 new Covid-19 infections, 632 recoveries and 12 deaths, pushing up after six days the total number of active cases, by 16 to 7,506.

The new cases reported on Thursday were indicative of people infected between December 7 and 11.

Calcutta reported 216 new infections and North 24-Parganas 124. Calcutta reported one death and North 24-Parganas three more.

Calcutta, North and South 24-Parganas, Howrah, Hooghly and Nadia accounted for 492 or 74.55 per cent of new infections detected on Thursday.

Calcutta and North 24-Parganas were the only two of the state’s 23 districts with a three-digit figure of new cases found in a day. Ten districts reported a single-digit figure. Thirteen districts reported zero deaths.

In 82 days since Bengal snapped out of a 97-day fall in active cases, there has been a net fall of 168 in the total.

Bengal’s daily positive confirmation rate, which was nearly 33 per cent at the peak of the second wave, was 1.78 per cent on Thursday. The state’s recovery rate is 98.33 per cent, below the national rate of 98.38 per cent. Its mortality rate is 1.21 per cent, while that of the nation is 1.33 per cent.

Bengal now has over 16.25 lakh Covid-19 cases, since the first was logged in March last year. The total includes more than 15.98 lakh recoveries and 19,645 deaths.