Salmonellosis is caused by many serotypes of Salmonella enterica enterica which are typically host specific. For examples Salmonella enterica serovar dublin (S. dublin) and Salmonella enterica serovar typhimurium (S. typhimurium) cause infection in cattle and sheep. Transmission is generally by the oral route. The bacteria colonize the gut, penetrate the intestinal wall and multiply in the cells of the monocyte-macrophage line in the spleen and liver. Salmonella then re-enter the gut from where they are shed.
Diagnosis is suggested by clinical signs, histopathology and necropsy findings and confirmed by bacterial culture.
Serum samples from cattle or sheep may be tested by the serum agglutination test (SAT) for Salmonella dublin or Salmonella typhimurium.
Days of the week test is conducted
Monday – Friday
Up to 5 days
Selective enrichment culture for Salmonella
Fresh tissue or faeces
Monday – Saturday2
(Salmonella dublin, Salmonella typhimurium)
Clotted blood (red top tube)
Wednesday & Thursday
Up to 5 days
1 Turnaround times are provided as a guide only. For specific information about your submission please contact Customer Service.
2 Prior approval of delivery and testing on Saturday is required. Please contact the Customer Service Unit on 1800 675 623 to seek approval.