TITLE

Salmonellosis Outcomes Differ Substantially by Serotype

AUTHOR(S)
Jones, Timothy F.; Ingram, L. Amanda; Cieslak, Paul R.; Vugia, Duc J.; Tobin-D'Angelo, Melissa; Hurd, Sharon; Medus, Carlota; Cronquist, Alicia; Angulo, Frederick J.
PUB. DATE
July 2008
SOURCE
Journal of Infectious Diseases;7/1/2008, Vol. 198 Issue 1, p109
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Background. Most human infections are caused by closely related serotypes within 1 species of Salmonella. Few data are available on differences in severity of disease among common serotypes. Methods. We examined data from all cases of Salmonella infection in FoodNet states during 1996-2006. Data included serotype, specimen source, hospitalization, and outcome. Results. Among 46,639 cases, 687 serotypes were identified. Overall, 41,624 isolates (89%) were from stool specimens, 2524 (5%) were from blood, and 1669 (4%) were from urine; 10,393 (22%) cases required hospitalization, and death occurred in 219 (0.5%). The case fatality rate for S. Newport (0.3%) was significantly lower than for Typhimurium (0.6%); Dublin (3.0%) was higher. With respect to invasive disease, 13 serotypes had a significantly higher proportion than Typhimurium (6%), including Enteritidis (7%), Heidelberg (13%), Choleraesuis (57%), and Dublin (64%); 13 serotypes were significantly less likely to be invasive. Twelve serotypes, including Enteritidis (21%) and Javiana (21%), were less likely to cause hospitalization than Typhimurium (24%); Choleraesuis (60%) was significantly more so. Conclusions. Salmonella serotypes are closely related genetically yet differ significantly in their pathogenic potentials. Understanding the mechanisms responsible for this may be key to a more general understanding of the invasiveness of intestinal bacterial infections.
ACCESSION #
32777934

 

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