Kolkata, Mar 23 (PTI) The COVID-19 situation in 19 districts of West Bengal is "quite grim" with a steady rise in infections in these places, according to an internal survey conducted by the state's health department.

"The infection rate has increased from 1.35 per cent to 1.78 per cent between March 15 and March 21. There are 19 districts on the list marked as red," a source said.

Kolkata's infection rate rose to 3.04 per cent from 2.09 per cent during the reporting period, the survey showed.

Meanwhile, the state reported 404 fresh cases of COVID-19 on Tuesday, pushing the tally to 5,81,403, the department said.

The death toll mounted to 10,310 with two more fatalities.

West Bengal now has 3,656 active cases, it said, adding 89,92,906 samples have been tested for coronavirus so far.

(The above story is verified and authored by Press Trust of India (PTI) staff. PTI, India’s premier news agency, employs more than 400 journalists and 500 stringers to cover almost every district and small town in India.. The views appearing in the above post do not reflect the opinions of LatestLY)