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Campylobacter fetus subspecies venerealis (view source)
Revision as of 15:57, 6 September 2011
, 15:57, 6 September 2011no edit summary
''Campylobacter fetus'', has the subspecies [[Campylobacter fetus subspecies fetus|''fetus'']] and ''venerealis'', belonging to the genus [[Campylobacter species - Overview|''Campylobacter'']]. ''Campylobacter fetus subsp. venerealis'' causes '''venereal infection in cattle''' and '''infertility in female''' cattle.
''Campylobacter fetus'', has the subspecies [[Campylobacter fetus subspecies fetus|''fetus'']] and ''venerealis'', belonging to the genus [[Campylobacter species - Overview|''Campylobacter'']]. ''Campylobacter fetus subsp. venerealis'' causes '''venereal infection in cattle''' and '''infertility in female''' cattle.
'''Bulls are carriers''' of the disease as they show no clinical signs but bacteria can be found in the glandular crypts of the bulls prepuce. ''Campylobacter fetus'' subsp.'' venerealis'' is therefore spread by coitus or rarely by artificial insemination. It causes catarrhal inflammation in the female genital tract, temporary infertility and prolonged oestrus cycle. [[Endometritis]] prevents implantation until the infection is cleared and causes early embryonic death and occasionally sporadic abortion.
'''Bulls are carriers''' of the disease as they show no clinical signs but bacteria can be found in the glandular crypts of the bulls prepuce. ''Campylobacter fetus'' subsp.'' venerealis'' is therefore spread by coitus or rarely by artificial insemination. It causes catarrhal inflammation in the female genital tract, temporary infertility and prolonged oestrus cycle. [[Endometritis - Cattle|Endometritis]] prevents implantation until the infection is cleared and causes early embryonic death and occasionally sporadic abortion.
The cow may remain infertile for 3-5 months before immunity develops, which then lasts 4-5 years. Effective immunity includes induction of [[IgA]] in the vagina and [[IgG]] in the uterus.
The cow may remain infertile for 3-5 months before immunity develops, which then lasts 4-5 years. Effective immunity includes induction of [[IgA]] in the vagina and [[IgG]] in the uterus.