Amal IbrahimElhagAbdelrahman2,, Salma Suliman OsmanElhag1, Dhoha El-aminIbrahim EI-Shaikh Iddriss2,, 1M.Sc student Microbiology Department, Faculty of Medical Laboratory Sciences, Al-Neelain University, Sudan 2M.Scstudent Microbiology Department, Faculty of Medical Laboratory Sciences, Al-Neelain University, Sudan 3 Department of Microbiology, Faculty of Medical Laboratory Sciences, Sudan University of Khartoum, Sudan 4 Department of Microbiology and Parasitology, College of Medicine, University of Bisha , Saudi Arabia 5Assistant professor -Microbiology Department, Faculty of Medical Laboratory Sciences, Al-Neelain University, Sudan, Sudan