B virus infection of monkeys appears to be analogous to herpes simplex infection of man. The virus causes vesicular lesions of the lips, tongue and buccal mucosa following periods of stress. Encephalitis in monkeys due to B virus, as with herpes simplex in man, occurs but is rare.
Cheville, N. F. and Kluge, John P.
"Aspects of B Virus Infection in Laboratory Monkeys,"
Iowa State University Veterinarian: Vol. 29
, Article 9.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol29/iss2/9