Dr. Fania A AlbadriObstetrics and gynecology Department, Faculty of Medicine, Elsheikh Abdallah Elbadri University.Dr. Mosab Nouraldein Mohammed HamadMicrobiology department, Faculty of Medicine, Elsheikh Abdallah Elbadri University.Mr. Ghanem Mohammed Ghanem MahjafMicrobiology Department, Faculty of Medical Laboratory Sciences, Shendi University.