Herpes simplex viruses cause two kinds of infections. On initial infection at the portal of entry into the body, the virus replicates and kills the infected cell (lytic infection). In the course of its replication, the virus infects nerve endings and is transported retrograde to neuronal nuclei o...
Herpes simplex viruses cause two kinds of infections. On initial infection at the portal of entry into the body, the virus replicates and kills the infected cell (lytic infection). In the course of its replication, the virus infects nerve endings and is transported retrograde to neuronal nuclei of peripheral ganglia where it remains latent (silent) and does not harm the neuron. In some individuals the virus periodically reactivates, and is transported anterograde to a site near the portal of entry where it can cause recurrent lesions.