TABLE 1 .
Distribution of S-CDT-encoding genes among 21 nontyphoidal Salmonella enterica serotypes most commonly isolated from human cases in the United States in 2011
| Serotype | Serogroup | No. of reported laboratory-confirmed human clinical cases in 2011a | Proportion of S-CDT-positive isolatesb |
|
|---|---|---|---|---|
| % | No. positive/total | |||
| Enteritidis | D1 | 7,553 | 0 | 0/50 |
| Typhimuriumc | B | 6,131 | 0 | 0/50 |
| Newport | C2−C3 | 5,211 | 0 | 0/50 |
| Javiana | D1 | 2,937 | 100 | 50/50 |
| I 4, [5], 12:i: − | B | 1,339 | 0 | 0/50 |
| Montevideo | C1 | 1,196 | 100 | 50/50 |
| Heidelberg | B | 1,103 | 0 | 0/50 |
| München | C2−C3 | 984 | 0 | 0/48 |
| Infantis | C1 | 910 | 0 | 0/50 |
| Braenderup | C1 | 739 | 0 | 0/50 |
| Oranienburg | C1 | 721 | 100 | 50/50 |
| Saint Paul | B | 709 | 0 | 0/50 |
| Mississippi | G | 549 | 50 | 4/8 |
| Thompson | C1 | 536 | 0 | 0/50 |
| Agona | B | 505 | 0 | 0/50 |
| Bareilly | C1 | 429 | 0 | 0/22 |
| Berta | D1 | 321 | 0 | 0/20 |
| Anatum | E1 | 282 | 0 | 0/50 |
| Hartford | C1 | 241 | 0 | 0/18 |
| I 13,23:b: − | G | 218 | 0 | 0/1 |
| Hadar | C2−C3 | 205 | 0 | 0/47 |
a
Reported laboratory-confirmed human clinical cases in 2011 according to the CDC’s National Salmonella Surveillance report of 2011.
b
The presence of all S-CDT components (pltA, pltB, and cdtB) as determined by PCR amplification and the proportion of S-CDT-positive strains tested per serotype.
c
Serotype Typhimurium includes Typhimurium variant O:5−.