According to official sources, 191 dengue patients are now under treatment in different city hospitals and the number is on the rise. A total of 743 people with the mosquito-borne disease were hospitalised in the last months.

The three who died suffered from dengue haemorrhagic fever (DHF). Of them, Ambi, 56, died on July 16 at Holy Family Red Crescent Hospital, Humayun Kabir, 22, died on July 15 at Mitford Hospital and Banu, 20, died on the same day at Shaheed Suhrawardi Hospital.

Sources say the number of dengue attacks this season (from May) is at least 1500 and many of them did not come to hospitals for treatment of the viral fever.

"People who are not aware of the nature of Aedes mosquito that transmits the virus are common victims of the disease. One must keep in mind that Aedes mosquito lays eggs in fresh stagnant water in things like flower pots and empty plastic containers," said a physician.

Doctors have advised people to keep such things clean and mentioned Aedes mosquito bites people during daytime, mostly at dawn and dusk.