1I. Habib, 1A. A. Anjum, 2M. Rabbani, 3M.U.D. Ahmad, 1M. A. Ali, 1M. Nawaz,1 M. Kamran and 4H. M. Khan
1Department of Microbiology, 2University Diagnostic Laboratory, 3Department of Epidemiology and Public Health, 4Department of Pharmacology and Toxicology, University of Veterinary and Animal Sciences, Lahore