Department of Microbiology, Qauid-i-Azam University Islamabad, Pakistan;
Department of Microbiology, Qauid-i-Azam University Islamabad, Pakistan;
Department of Microbiology, Qauid-i-Azam University Islamabad, Pakistan;
Department of Microbiology, Qauid-i-Azam University Islamabad, Pakistan;
PCSIR Research Laboratories, Thokar Niaz Baig, Lahore, Pakistan;