Experimental Herpesvirus Keratitis in the Rabbit: Topical versus Intrastromal Infection Routes

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Abstract
Intrastromal and topical routes of infection of rabbit corneas with the HF strain of herpes simplex virus type 1 were compared clinically to determine which route of infection would present the best model of disciform edema and of deep stromal keratitis for our further studies on how the immune response of the infected animals may influence the expression of clinical disease. In addition, virus clearing and persistence of viral antigens as immunologic stimuli were monitored by virologic and electron microscopic immunocy-tochemical studies. We found topical infection to be preferable to the intrastromal infection route for presenting stromal disease in that it resulted in a higher incidence of epithelial disease with less anterior chamber involvement. The topical infection route model should be valuable in studies of cell-mediated immune response against HSV-infected cells.