Ultrastructural Features of Alkhumra Hemorrhagic Fever Virus Infection of Cells Under In Vivo and In Vitro Conditions
2018
Madani, Tariq A. | Abuelzein, El-Tayb M.E. | Abu-Araki, Huda | Ali, Soad S. | Jalalah, Sawsan M. | Hassan, Ahmed M. | Al-Bar, Hussein M.S. | Azhar, Esam I.
Alkhumra hemorrhagic fever virus (AHFV) is an emerging novel flavivirus that was discovered in Saudi Arabia in 1995. The virus has since caused several outbreaks in the country that resulted in case fatality rates ranging from 1% to 25%. Meager information has been published on the ultrastructural features of the virus on cells under in vitro or in vivo conditions. The present electron microscopic study examined and compared the intracellular growth of the AHFV on the LLC-MK2 cells and brain cells of new born Wistar rats, inoculated intracerebrally. The cytopathological changes in both cell systems were noted, and localization of the virus particles in different cellular components was observed. Both apoptotic and lytic cell interactions were seen in the electron micrographs of both the LLC-MK2 and the rat brain cells. The results were discussed in relation to similar situations reported for other virus members of the genus Flavivirus.
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