Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Clinical symptoms in HSV-infected rats on day 7 after HSV-1 infection. The clinical symptoms were categorized and the percent incidence per category was calculated. 0, no symptoms; I, redness, swelling, and contamination of the nose and eyes; II, behavioral signs such as stress or lethargy; III, severe neurological signs such as impairment of motor function and paralysis; IV, death or termination.
