To investigate the status of conventional laboratory mice colonies for zoonotic bacteria, three mice colonies, NIH, NMRI and Balb/c strains of Razi institute were studied for five zoonotic bacteria including Pasteurella pneumotropica, Salmonella typhimurium, Salmonella enteritidis, Streptobacillus moniliformis, Streptococcus Pneumonia. Study populations were 74 mice of premature, mature and pos...