TABLE 7-5.

Some Viruses Excreted in the Semen of Domestic Animals

Family	Virus	Animal	Comments
Herpesviridae	Infectious bovine rhinotracheitis virus	Cattle	Virus persists in ganglia, reinfecting genital tract with excretion in semen intermittently
Retroviridae	Mammary tumor virus	Mouse	Virus transmitted via sperm in some strains of mice
	Bovine leukemia virus	Cattle	Virus persists in lymphoid tissues and leukocytes, with excretion in semen continuously
Reoviridae	Bluetongue viruses	Cattle	Virus infects leukocytes and is excreted in semen continuously or intermittently as long as bull is viremic
Picornaviridae	Foot-and-mouth disease virus	Cattle	Virus infects genital tract with excretion in semen