The deceased was identified as Zakirul, 28, son of Ramjan Ali of Sabgram village in Sadar upazila.
Shafique Amin Kajal, a physician of the hospital, said Zakirul had been suffering from fever and cold since April 17 and was undergoing treatment at the hospital.
He died around 2:15 pm at the hospital today, he said.
The hospital authorities took samples for coronavirus test on Tuesday.
Meanwhile, Milon, a rickshaw puller in Adamdighi upazila, tested coronavirus positive on Tuesday and he was sent to the isolation unit of Mohammad Ali Hospital.
Local administration put his house under lockdown.