West Bengal reported 635 new dengue cases on Saturday, a health department official said.
Kolkata, North and South 24 Parganas are among the worst-affected districts, he said.
The dengue death toll stood at 16 since the outbreak of the mosquito-borne disease this season two months ago.
Altogether, 745 patients are presently undergoing treatment at state-run hospitals, the official said.
Meanwhile, a health department bulletin said the state logged 314 fresh Covid-19 cases on Saturday, pushing the tally to 21,12,872.
With one more fatality, the toll rose to 21,495, it added.
(Inputs from PTI)