E. A. Elamin - Department of Microbiology and Parasitology; PO Box 1757 Al-Ahsa 31982 Saudi Arabia
A. E. Fatani - Department of Microbiology and Parasitology; PO Box 1757 Al-Ahsa 31982 Saudi Arabia
S. A. Al Atiya - Department of Microbiology and Parasitology; PO Box 1757 Al-Ahsa 31982 Saudi Arabia
R. O. Ramadan - King Faisal University
M. R. Abdin-Bey - King Faisal University