Article Figures & Data
Figures
- Fig. 1.
PFGE profiles of Salmonella serotype Infantis strains restriction enzyme digested with XbaI showing representative PFGE patterns. Lanes 1, 5, 10, and 15 contained the Salmonella serotype Newport standard strain AM01144.
- Fig. 2.
Dendrogram of Salmonella serotype Infantis PFGE types.
Tables
- Table 2.
Characteristics of all serotype Infantis characterized in the NLEP during the period of study
Source(s) No. of types No. of isolates Type characteristic(s) (PFGE:PT)a Humans and pigs 6 88 1:4, 2:4, 3:4, 4:26, 6:4, 7:7 Humans only 36 51 3:26, 6:26, 9:26, 10:3, 10:10, 11:10, 12:8, 12:26, 13:7, 14:13, 15:26, 16:4, 16:10, 19:8, 19:29, 20:4, 21:7, 22:7, 22:10, 24:UT, 25:26, 26:26, 27:26, 28:26, 29:4, 30:4, 30:7, 31:7, 32:7, 34:13, 35:9, 36:4, 37:13, 39:26, 40:13, 41:4 Pigs only 6 7 1:26, 5:4, 7:4, 8:4, 15:atypical, 19:3 Humans and poultry 1 5 13:9 Poultry only 2 2 17:4, 18:4 Cows only 1 1 38:26 Other sources 3 3 14:4, 23:ND, 33:8 ↵a UT, untypeable; ND, not determined.
- Table 3.
PFGE patterns in specific PTs
PT PFGE pattern no. 3 10, 19 4 1–8, 14, 16–18, 20, 29, 30, 36, 41 7 7, 13, 21, 22, 30, 31, 32 8 12, 19, 33 9 13, 35 10 10, 11, 16, 22 13 14, 34, 37, 40 26 1, 3, 4, 6, 9, 12, 15, 25–28, 38, 39 29 19 Atypical 15 Untypeable 24 Not tested 23 - Table 4.
Incidence of Salmonella serotypes in humans and in pet treats
Salmonella serotype Incidence in humans ina: Frequency of isolation inb: 1998 1999 Pig ear Other Agona 164 151 2/122 1/29 Agoueve 1 1 0 1/29 Anatum 52 26 5/122 0 Banana 0 0 0 1/29 Bovis-morbificans 59 23 3/122 1/29 Brandenberg 110 45 4/122 1/29 California 6 0 4/122 0 Derby 57 29 12/122 1/29 Havana 17 5 0 2/29 Heidelberg 1,241 821 5/122 0 Infantis 155 193 22/122 8/29 Livingstone 2 1 1/122 0 Mbandaka 100 62 2/122 1/29 Meleagridis 19 5 0 1/29 Montevideo 43 54 1/122 2/29 Muenster 16 8 1/122 0 Ohio 13 13 5/122 0 Panama 27 34 1/122 0 Schwarzengrund 29 49 2/122 0 Typhimurium 1,590 1,401 13/122 2/29 Typhimurium var. copenhagen 0 0 1/122 1/29 Uganda 15 8 1/122 0 Worthington 5 23 5/122 0 ↵a Information regarding the incidence of human disease in Canada in 1999 was taken from the National Enteric Surveillance Report, a tool for collecting and collating weekly data on bacterial isolations provided by provincial laboratories. Though the information is validated weekly, it is regarded as provisional until a final validation is completed after the year's end. Data for 1999 should be regarded as provisional.
↵b The frequency of isolation refers to isolates obtained as part of this study. The number of eachSalmonella serotype isolated is expressed as the ratio of all Salmonella isolates obtained from either pig ears or from other sources. “Other” indicates different kinds of pet treats (braided chew, hoof, roulé rôti) or pig parts. This does not include other animal isolates summarized in Table 1.
- Table 5.
PT and PFGE type found in Salmonella serotypes other than serotype Infantis from pig ears and humansa
Salmonella serotype PT PFGE type Pig ear Human Pig ear Human Agona Pattern G Patterns C and E 16 1–3, 7–8, 9–15 Anatum Pattern A Pattern A 2 1 Heidelberg 19 Many 1 1–24 Typhimurium 12, 104, 104a Many 1–4 1–5 Worthington NT NT 2–5 1, 2 ↵a There are 49 PTs in the serotype Heidelberg phage typing scheme and 262 PTs in the serotype Typhimurium scheme. Many of these have been found inSalmonella isolates in Canada, including those found in pig ears. NT, not tested (isolates were not sent to the NLEP for testing).
