Of them, three were diagnosed with Covid-19 within the last 24 hours, director general of the Directorate General of Health Services said within the morning.
Another case of coronavirus was detected in Chuadanga, ASM Maruf Hasan, civil surgeon of the district, said this afternoon.
The number of confirmed coronavirus cases within the country is now 18.
DG of DGHS, addressing a press briefing, said a 22-year-old woman, a 32-year-old man and a 65-year-old man are the new patients.
They are all members of the family of 1 Italy-returnee, he added.
Among the trio, the lady showed only minor symptoms. She is under local quarantine, the director general said.
The other two are hospitalised.
The person diagnosed with coronavirus in Chuadanga had returned from Italy on March 12, civil surgeon of Chuadanga said at a news conference this afternoon.
The patient has been kept in quarantine, he said.
Virus transmission has not yet reached the extent of community-transmission, the DG of DGHS said.
The total number of tests conducted by Institute of Epidemiology, Disease Control and Research (IEDCR) thus far is 366. within the last 24 hours, 25 tests were done.
The DG also said that test facilities are going to be extended to all or any divisions within the country except Barishal.
A total of 500 new personal protective equipment (PPE) were supplied to Dhaka Medical College Hospital and 1,000 were supplied to Chattogram Medical College Hospital.
The collection of 1 lakh test kits and five lakh PPE is under process.