Changes

*Found in glandular crypts of prepuce of bull with no clinical signs - carriers

*Found in glandular crypts of prepuce of bull with no clinical signs - carriers

*Causes catarrhal inflammation in female genital tract

*Causes catarrhal inflammation in female genital tract

*Endometritis prevents implantation until infection gone and causes early embryonic death, occasionally sporadic abortion

*Endometritis prevents implantation until infection cleared and causes early embryonic death, occasionally sporadic abortion

*May remain infertile for 3-5 months before immunity develops, which lasts 4-5 years

*May remain infertile for 3-5 months before immunity develops, which lasts 4-5 years

*Effective immunity includes induction of IgA in the vagina and IgG in the uterus

*Effective immunity includes induction of IgA in the vagina and IgG in the uterus

*Treatment: dihydrostreptomycin intrauterine for cows and systemically or topically for bulls

*Treatment: dihydrostreptomycin intrauterine for cows and systemically or topically for bulls

*Vaccination: bacterin in oil adjuvant

*Vaccination: bacterin in oil adjuvant

===''Campylobacter fetus'' subspecies ''fetus''===

===''Campylobacter fetus'' subspecies ''fetus''===