Hamza Abdallh****4, Mokhtar Zakaria Adam Salih*1, Wafa Ibrahim Elhag**2, Raja Yagoub El Feel***, *1-Talodi hospital, Laboratory department, South Kordofan, State, Sudan. **2-Assistant professor, Faculty of Medical Laboratory Sciences, Al Neelain University, Sudan. ***3-Ministry of Health, Khartoum, State, Sudan. ****4- Ministry of Health, Virology lab, Khartoum, State, Sudan., Sudan