Three passengers arrived at Hazrat Shahjalal International Airport on Monday with fever and breathing complications were sent to hospital.
Among the three Bangladeshis, two came from Italy and one from Singapore.
Dhaka airport health office said that the passengers arrived in Dhaka by Qatar Airways, Emirates and Singapore Airlines.
The passengers returning from Italy had breathing complications while the passenger from Singapore had been suffering from fever, said the airport health officer Shahriar Sajjad.
"As the symptoms are very much similar to coronavirus, we have sent them to Kuwait Bangladesh Friendship Government Hospital," he added.
Coronavirus is racing around Italy, and a Bangladeshi was reported to be infected with the virus in that country. Five Bangladeshis in Singapore also tested positive with the novel coronavirus, or Covid-19.
Dhaka airport introduced health screening of the incoming passengers as coronavirus spread in Wuhan in China three months ago. The airport authorities were referring suspect passengers with symptoms similar to Covid-19.
The Institute of Epidemiology Disease Control and Research (IEDCR) on Sunday reported maiden coronavirus cases in Bangladesh. Among the three persons tested positive with the virus, two returned home from Italy while the third one is a relative of them.