Outbreak of Salmonella Thompson infection in a Swedish dairy herd.
Salmonella Typhimurium was isolated from a faecal sample from a cow in a Swedish dairy herd after calving. When investigations were undertaken in the herd, Salmonella Thompson was isolated from heifers on a separate pasture, and when these heifers were brought into the herd S Thompson spread rapidly. Control strategies managed to rid the herd of the S Typhimurium infection and the prevalence of S Thompson was at first substantially reduced. There was a rapid increase in its prevalence when the animals were let out to pasture and this development eventually led to the depopulation of the entire herd.
Sternberg
S
S
National Veterinary Institute, se-751 89 Uppsala, Sweden.
Johnsson
A
A
Aspan
A
A
Bergström
K
K
Kallay
T B
TB
Szanto
E
E
D000822:Animal Husbandry; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology* / Q000382:microbiology / Q000517:prevention & control / Q000635:transmission*; D004196:Disease Outbreaks / Q000662:veterinary*; D037901:Euthanasia, Animal; D005243:Feces / Q000382:microbiology; D005260:Female; D008297:Male; D015995:Prevalence; D012481:Salmonella Infections, Animal / Q000453:epidemiology* / Q000382:microbiology / Q000517:prevention & control / Q000635:transmission*; D019779:Salmonella enterica / Q000145:classification / Q000302:isolation & purification*; D012486:Salmonella typhimurium / Q000302:isolation & purification; D013548:Sweden / Q000453:epidemiology