Campylobacter fetus is a rod-shaped, gram-negative species of bacteria within the genus Campylobacter of phylum Pseudomonadota.[1] Identification of C. fetus species in infected animals or people is routinely performed by culture on blood or cefoperazone deoxycholate agar.[2][3] Subspecies of C. fetus commonly causes reproductive disease in ruminants and gastrointestinal disease in humans.[4] Transmission of C. fetus subspecies venerealis occurs mainly through venereal contact while transmission of C. fetus subspecies fetus occurs mainly through ingestion of bacteria in a contaminated environment.[5] Infertility in cattle and abortion in sheep are common outcomes of infection associated with C. fetus subspecies venerealis and C. fetus subspecies fetus, respectively.[4] Disease in humans occurs through zoonotic transmission of C. fetus mainly via ingestion of contaminated food or water sources.[6] C. fetus can be diagnosed with polymerase chain reaction assays, enzyme linked immunosorbent assays and vaginal mucus agglutination testing. As vaccines are typically not efficient in preventing future spread, infected bulls are often culled.[7][8] Human infections may be treated with erythromycin as antimicrobial resistance has been emerging for the fluoroquinolones.[9][10]
| Campylobacter fetus | |
|---|---|
| |
| Computer-generated illustration of C. fetus showing the characteristic "S-shaped" morphology. | |
Scientific classification 
| |
| Domain: | Bacteria |
| Phylum: | Campylobacterota |
| Class: | "Campylobacteria" |
| Order: | Campylobacterales |
| Family: | Campylobacteraceae |
| Genus: | Campylobacter |
| Species: | C. fetus
|
| Binomial name | |
| Campylobacter fetus (Smith & Taylor 1919) Sebald & Véron 1963 | |
https://en.wikipedia.org/wiki/Campylobacter_fetus
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