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  • Title: Absence of infectious retinitis after injection of human cytomegalovirus into rabbit eyes.
    Author: Tatebayashi M, Neyts J, Besen G, Flores-Aguilar M, Smith IL, Wiley CA, Spector SA, Bergeron-Lynn G, Maudgal PC, De Clercq E.
    Journal: J Infect Dis; 1995 Apr; 171(4):782-7. PubMed ID: 7706803.
    Abstract:
    The rabbit model of human cytomegalovirus (HCMV) retinitis was evaluated by preretinal and intravitreal injection of HCMV into rabbit eyes. Ocular disease was evaluated by indirect ophthalmoscopy, histopathology, and immunohistochemistry. Vitritis, optic nerve congestion, multiple small white infiltrates in the cortical vitreous or on the retinal surface, and retinal detachments were seen. Histopathologic examination showed inflammatory cell infiltration in the preretinal vitreous, optic nerve, and transiently in the superficial inner retina. Retinal structure was preserved except for changes in areas of retinal detachment. No necrosis or destruction of the retina was seen. Immunohistochemistry showed no evidence of cytomegalovirus infection. Inoculation of culture medium containing fetal calf serum caused a similar reaction. It is concluded that vitreous and retinal inoculation of HCMV in the rabbit eye caused nonspecific inflammation without evidence of infection, so this is not a suitable model for HCMV retinitis.
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