Dhaka is experiencing a worse-than-usual attack of potentially deadly dengue fever this year, the Directorate General of Health Services (DGHS) has said.
Four people have died from the disease and some 1,500 people were admitted to hospital around the country so far this year, according to the DGHS.
The International Centre for Diarrhoeal Disease Research, Bangladesh (ICDDR,B) says this is the worst attack of dengue fever in the last five years.
The first two weeks of September saw more than 500 hospital admissions for dengue fever, 135 more cases than the previous year.
A week ago, Aman Momtaj, son of BNP standing committee member Moudud Ahmed, succumbed to dengue fever.
Experts say dengue fever is usually prevalent from June to September with patients complaining of fever, severe bodily pain and headache.
DGHS National Crisis Management Centre sources and Control Room sources said this year there were zero dengue patients in February, two in March, two in April and one in May.
High levels of rainfall cause increases in mosquito-borne illnesses and June saw 15 people infected with dengue, July saw 156 and August saw 583 cases admitted to hospital.
The DGHS said 373 dengue cases were admitted to hospital in 2014; 1,478 were hospitalised in 2013; 1,286 in 2012 and 1,362 in 2011, but no deaths from the disease were reported.
Six people died and 409 were hospitalised for dengue in 2010.
Experts said they were concerned that heavy rainfall would cause in increase in the incidence of the sometimes fatal disease.
They counselled the public to become aware of the symptoms and treatment of the disease and to go to the hospital if there is any suspicion of infection.