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S Z Abghari, R D Stulting; Recovery of herpes simplex virus from ocular tissues of latently infected inbred mice.. Invest. Ophthalmol. Vis. Sci. 1988;29(2):239-243.
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Evidence for latent infection of ocular tissues following topical corneal inoculation with herpes simplex virus type 1 (HSV) was sought in three strains of inbred mice that differ in susceptibility to HSV stromal keratitis. Corneas of BALB/c, C57BL/6, and DBA/2 mice were inoculated topically with HSV. At 6-8 weeks after inoculation, when no active ocular infection was present, minced whole eyes and trigeminal ganglia were assayed for latent virus. Virus was recovered by explantation from minced eyes of all three strains (DBA/2 = 20%; BALB/c = 17%; C57BL/6 = 7%). In order to determine which ocular structures harbored virus, corneas, retinas and choroid-sclera were cultivated separately. Virus was activated from corneas of DBA/2 and BALB/c mice, but not from corneas of C57BL/6 mice. These findings suggest that HSV is capable of establishing latent infection in ocular tissue of inbred mice and that the rate of establishment of latency is under host genetic control. Since neural cell bodies are not present in the cornea, the data suggest that latency is established in cells other than neurons.
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