Another policeman was diagnosed with coronavirus.   With the latest one, total 11 policemen have so far been infected with the virus, said Chattogram Civil Surgeon Dr Sheikh Fazle Rabbi.   Abu Bakar Siddique, deputy police commissioner of Dampara Police Lines, said eight traffic police, two policemen from Dampara Police Lines and a policeman, who served in Khulshi area of the city were found infected with the virus and they were given treatment at an isolating center.   The district has so far confirmed 72 coronavirus cases and five deaths.