There are two unit under Microbiology section of the laboratory. Bacteriology and mycology unit is responsible for isolation and identification of bacteria and fungus, which receives samples from various sources such as farmers, Central Veterinary Hospital, referral samples from private clinics, Regional Veterinary Laboratories and directly from the field as well DLSO's. Various samples like milk, urine, tissues, water, nasal swabs, ear swabs and skin scrapping are received in this unit for isolation, identification and antibiotic sensitivity testing of the organism. Likewise,Virology unit is responsible for the diagnosis and monitoring of viral diseases . Most of the samples are submitted to this unit by the post mortem unit of CVL, Regional Veterinary Laboratories, National Avian Laboratory, Central Veterinary Hospital, District Livestock Service Offices, quarantine check posts, private clinicians, farmers and staffs of CVL during disease outbreak investigations as well as for routine diagnosis. The unit has a capacity of Competitive Enzyme Linked Immunosorbent Assey (ELISA), Flourescent Antibody Test, Virus isolation and identification, Plate agglutination test and rapid test. Rapid test is used for the initial diagnosis of New Castle Disease, Infectious Bursal Disease, Avian Influenza and Rabies. For the further confirmative diagnosis of Avian Influenza the samples are sent to the molecular section for Polymerase Chain Reaction (PCR). Likewise for the diagnosis of rabies, rapid test kit method is followed by Negri body test, FAT and mouse inoculation test. In case of New Castle disease HA/HI is done.