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Some subunit vaccines composed of herpes simplex virus (HSV) glycoproteins have been shown to protect guinea pigs against primary and recurrent genital infection by HSV-2. However, these vaccines were ineffective or only marginally effective in clinical trials. To attempt to define an animal model that would better discriminate the protective capacity of different vaccine formulations, we have examined...
Herpes simplex virus (HSV) most frequently initiates infection at a mucosal surface; thus mucosal immune responses are likely to be important in defense against HSV infection. We have examined the effects of eliciting mucosal as well as systemic immune responses on protection against genital challenge infection with virulent HSV-2 in mice immunized with a replication-defective mutant of HSV-2. In...
A replication-defective mutant of herpes simplex virus 2 (HSV-2) was engineered by replacing the ICP8 gene of HSV-2 strain 186 with an ICP8–lacZ fusion gene from the herpes simplex virus 1 (HSV-1) HD-2 mutant strain. The resulting virus, HSV-2 5BlacZ, is defective for growth in Vero cells but is capable of growth in a cell line that expresses HSV-1 ICP8. In Vero cells, the mutant virus is defective...