Address correspondence and reprint request to: Dr. Sameera Aljohani, Department of Pathology and Laboratory Medicine, KAMC, Riyadh, Kingdom of Saudi Arabia. Tel. +966 (1) 2520088 Ext. 12817. Fax. +966 (1) 2520130. E-mail: [email protected] I A virus is a member of the family Orthomyxoviridae. Influenza viruses are enveloped, with a segmented, single-stranded RNA genome. This family also conta...