BSMMU Vice-Chancellor Kanak Kanti Barua confirmed the matter in the evening.
“Shahidullah, chairman of Department of Dermatology & Venereology and Pro Vice Chancellor (Research & Development), tested positive on Thursday,” he said.
Barua said Shahidullah’s department has been disinfected and those who came in contact with him have been quarantined.
Several BSMMU doctors said Shahidullah was on the campus on Thursday and distributed masks among his colleagues.
Prof Shahidullah told UNB that he was infected while providing treatment to a patient.
"I was diagnosed with coronavirus today. I realised it on Wednesday while treating a patient," he added.
Dr Shahidullah said the government should conduct more tests and serve the nation.
"Everyone should be aware of COVID-19 and practice social distancing. Currently, I’m staying at home," he said.
Bangladesh on Thursday reported 112 new coronavirus cases and one death. The country has so far recorded 330 cases and 21 deaths.