Pakistan Journal of Microbiology  (PJM) is a bi-monthly journal which is published by six times a year on alternate months. The journal has been started from the plate form of its society know as Pakistan society for Microbiology (PSM) which is a leading society of biology discipline. It holds its conferences after every two years. PSM has been conducting biennial conferences in Pakistan since 1995. The society was pioneered by a renowned microbiologist Prof. Dr. Anwer (late) from Karachi University. A large number of participants from all over the country participate in the conference held by PSM every two years.