Other doctors and staff of the department have been sent on isolation.
The hospital authorities on Saturday said two coronavirus patients came for treatment concealing his condition and caused the disaster.
Two coronavirus patients got admitted to the orthopaedic department hiding the fact they tested positive for COVID-19 and underwent treatment for several days, said the department’s surgeon Sudip Halder said.
“When truth about their condition was learned, samples of all doctors and nurses from the department were sent for test and 11 of them tested positive,” he said.
“The whole department has been locked down,” Halder said.
The orthopaedic department is operating on a limited scale. The two coronavirus patients have been sent to the corona ward of the hospital, doctors said.
Bangladesh on Saturday confirmed the detection of 2,635 new cases across the country in the last 24 hours, taking the total confirmed cases to 63,026. During the same period, 35 more patients died from COVID-19, raising the death toll to 846.
Also read: Coronavirus in Bangladesh: 2,635 new cases, 35 deaths recorded in 24 hrs