Counter D E, Gibson E A
Vet Rec. 1980 Aug 30;107(9):191-3. doi: 10.1136/vr.107.9.191.
Salmonella dublin was isolated from 14 (0.4 per cent) of 3656 rectal swabs taken from adult cattle in 20 self-contained East Anglian dairy herds with a history of the infection in calves. When 1486 calvings in these herds were monitored, the organism was isolated from 10 (0.7 per cent). Seven cows that had given negative rectal swabs at previous herd tests yielded the organism. These results indicate that latent carriers of S dublin may produce congenitally infected calves or excrete the organism at or soon after parturition and that this may provide the origin of many outbreaks of S dublin infection in self-contained herds.
从东安格利亚地区20个独立的奶牛场中采集了3656份成年牛直肠拭子，这些奶牛场有犊牛感染沙门氏菌都柏林亚种的病史，其中14份（0.4%）分离出了该病菌。对这些牛场的1486次产犊进行监测时，从10次（0.7%）中分离出了该病菌。7头在之前牛群检测中直肠拭子呈阴性的母牛排出了该病菌。这些结果表明，都柏林沙门氏菌的潜伏携带者可能产出先天性感染的犊牛，或者在分娩时或分娩后不久排出该病菌，这可能是独立牛场中许多都柏林沙门氏菌感染暴发的源头。
