Analysis of Salmonella enterica over five years
In a recent analysis of Salmonella enterica culture results (excluding the bovine host-adapted serotype S. Dublin) at the Cornell Animal Health Diagnostic Center (AHDC) over the past five years, 1,770 isolates were identified across 32 animal species and environmental samples. Bovine samples had the largest numbers with 1,380 Salmonella isolates and 48 different serotypes (Table 1). Equine samples had the second-highest number, with 66 isolates, and environmental samples were the third highest with 62 isolates (Table 2). Snake and lizard samples yielded the second highest number of Salmonella serotypes, after bovine samples (Table 3).
The majority of the 1,770 salmonella isolates were from feces, with approximately 300 non-enteric isolates. Of the non-enteric samples, Salmonella was most commonly cultured from the environment (67), lung (21) and blood (10). Salmonella isolates from enteric sources and the environment are expected due to its primary nature as a gastrointestinal pathogen that is spread through feces. However, isolation of Salmonella from the blood or blood-rich organs such as lung, kidney, spleen and lymph nodes are suggestive of septicemia.
Table 1
Bovine Salmonella serotypes, excluding S. Dublin | Count |
---|---|
Salmonella Cerro | 579 |
Salmonella Montevideo | 202 |
Salmonella Typhimurium | 194 |
Salmonella 4,[5],12:i:- | 68 |
Salmonella Muenster | 57 |
Salmonella Kentucky | 24 |
Salmonella Heidelberg | 24 |
Salmonella Anatum | 22 |
Salmonella Thompson | 20 |
Salmonella Infantis | 19 |
Salmonella Liverpool | 17 |
Salmonella Give | 15 |
Salmonella Newport | 14 |
Salmonella Typhimurium var 5 | 10 |
Salmonella Saint-Paul | 10 |
Salmonella Kiambu | 8 |
Salmonella Uganda | 6 |
Salmonella Brandenburg | 6 |
Salmonella Bovis-Morbificans | 6 |
Salmonella Meleagridis | 5 |
Salmonella Oranienburg | 4 |
Salmonella Muenchen | 4 |
Salmonella Manhattan | 4 |
Salmonella Enteritidis | 4 |
Salmonella IV Rough O:z4z23 | 3 |
Salmonella Braenderup | 3 |
Salmonella Agona | 3 |
Salmonella Senftenberg | 2 |
Salmonella Schwarzengrund | 2 |
Salmonella Poona | 2 |
Salmonella Ouakam | 2 |
Salmonella Mbandaka | 2 |
Salmonella London | 2 |
Salmonella Ealing | 2 |
Salmonella Amsterdam var 15+ | 2 |
Salmonella Worthington | 1 |
Salmonella Typhimurium var Copenhagen | 1 |
Salmonella Rough O:z4,z23:- | 1 |
Salmonella Rough tO:Nonmotile | 1 |
Salmonella Paratyphi B var L-tartrate+ | 1 |
Salmonella Orion | 1 |
Salmonella Minnesota | 1 |
Salmonella Holcomb | 1 |
Salmonella Fresno | 1 |
Salmonella Anatum var 15+ | 1 |
Salmonella Amsterdam | 1 |
Salmonella 6,7,:-:1,5 | 1 |
Salmonella 4,12:i:- | 1 |
Table 2
Species | Count |
---|---|
Amphibia - frog and toad | 1 |
Aves - Anseriformes | 5 |
Aves - Charadriformes | 1 |
Aves - Columbiformes | 14 |
Aves - Galliformes | 30 |
Aves - Other | 3 |
Aves - Passeriformes | 1 |
Bovidae | 1 |
Canidae | 2 |
Canine | 27 |
Environmental | 62 |
Equidae | 3 |
Equine | 66 |
Felidae | 5 |
Feline | 7 |
Giraffidae | 1 |
Marsupialia | 2 |
Ovine | 13 |
Pinnipedia | 2 |
Porcine | 10 |
Primate | 1 |
Primate - New World | 6 |
Primate - Old World | 2 |
Procyonidae | 1 |
Reptilla - Crocodilla | 4 |
Reptilia - Lizard | 47 |
Reptilla - Snake | 55 |
Reptilla - Turtles | 9 |
Rodentia - Castoridae | 4 |
Rodentia - Erethizontidae | 1 |
Rodentia - Muridae | 3 |
Xenarthra | 1 |
Table 3
Animal species | Count |
---|---|
Bovine | |
Reptilia - Snake | |
Reptilia - Lizard | |
Environmental | |
Equine | |
Canine | 12 |
Reptilia - Turtles | 9 |
Aves - Galliformes | 7 |
Felidae | 5 |
Aves - Anseriformes | 4 |
Aves - Columbiformes | 4 |
Porcine | 4 |
Rodentia - Castoridae | 3 |
Canidae | 2 |
Equidae | 2 |
Feline | 2 |
Marsupialia | 2 |
Primate - New World | 2 |
Amphibia - Frog and toad | 1 |
Aves - Charadriiformes | 1 |
Aves - Other | 1 |
Aves - Passeriformes | 1 |
Bovidae | 1 |
Giraffidae | 1 |
Ovine | 1 |
Pinnipedia | 1 |
Primate | 1 |
Primate - Old World | 1 |
Procyonidae | 1 |
Reptilia - Crocodilia | 1 |
Rodentia - Erethizontidae | 1 |
Rodentia - Muridae | 1 |
Xenarthra | 1 |