Patient selection:
(1) infection with Salmonella species other than S. typhi
(2) not AIDS-related
|
Gastroenteritis
|
Focal Infection
|
Bacteremia
|
Type EII
|
|
absent
|
present
|
absent
|
localized infection
|
|
absent
|
present
|
present
|
primary bacteremia
|
|
absent
|
absent
|
present
|
primary bacteremia
|
|
present
|
present
|
present
|
secondary bacteremia
|
|
present
|
absent
|
present
|
secondary bacteremia
|
|
present
|
present
|
absent
|
localized infection
|
where:
• There are 8 combinations for gastroenteritis, focal infection and bacteremia.
• Gastroenteritis without focal infection or bacteremia (present, absent, absent) was considered intestinal disease.
Risk factors in pediatric patients:
(1) age < 3 years of age
(2) WBC count either < 5,000 per µL or > 15,000 per µL
(3) immature neutrophil forms > 10% of the peripheral blood differential count
(4) C reactive protein > 50 mg/L
Risk factors in adults:
(1) underlying disease, especially immunosuppression, cirrhosis, diabetes mellitus or cancer
(2) age >= 60 years
(3) presence of an invasive serotype (high invasion index) such as choleraesuis, Norwich, or Dublin
Limitations:
• The authors refer to anyone >= 60 years of age as being old.
