''Campylobacter fetus'', has the subspecies ''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 ''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. |