West Bengal’s Covid-19 death toll rose to 18,539 with eight more persons succumbing to the disease on Thursday, the bulletin released by the state health department said. The tally went up to 15,54,652 as 724 new cases were reported. In the last 24 hours, 758 recoveries were recorded in the state. So far, 15,27,867 people have been cured of the disease, the bulletin said. The number of active cases now is 8,246.