Hisham N Altayb1*, Mohamed A M Siddig2, Nagwa M El Amin3, Ahmed Ibrahim Hashim1 Maowia M. Mukhtar4
1College of medical laboratory science, Sudan University of science and technology, Sudan.
2Botany department, Faculty of Science, University of Khartoum, Sudan.
3Department of microbiology, Faculty of medicine, university of Khartoum, Sudan.
4Institute of Endemic Diseases, University of Khartoum, Khartoum, Sudan.
