Ibrahim A Helibi

Department of Microbiology, Faculty of Medical laboratory, Omdurman Al ahlia University, Sudan

Hisham N Altayeb

Department of Microbiology, Faculty of Medical laboratory, Sudan University of Science and Technology, Sudan

Yousif F Hamedelni

Department of Microbiology, Faculty of Medical laboratory, Sudan University of Science and Technology, Sudan

Khalid A Enan

Department of Virology, Central Laboratory-The Ministry of Higher Education and Scientific Research, Sudan

Isam M Elkhidir

Department of Microbiology and Parasitology, Faculty of Medicine, University of Khartoum, Khartoum, Sudan