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Page Title:
Table 1-10. Guidelines for confirmation of foodborne-disease outbreaks (Cont) |
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|  CHAPTER 1, FOOD SAFETY
Etiologic agent
Incubation
Clinical syndrome
Confirmation
period
Diarrhea, often with
Isolation of organism of same
8. Nontyphoidal
6 hrs-10
serotype from clinical
fever and abdominal
days,
Salmonella
specimens from two or more
cramps
usually 6-
ill persons
48 hrs
OR
Isolation of organism from
opidemiologically implicated
food
Isolation of organism from
Fever, anorexia,
3-60 days,
9. Salmonella typhi
clinical specimens of two or
malaise, headache, and
usually 7-
more ill persons
myalgia; sometimes
14 days
OR
diarrhea or
Isolation of organism from
constipation
epidemiologically implicated
food
12 hrs-6
Diarrhea (often
Isolation of organism of same
10. Shigella
days,
bloody), frequently
serotype from clinical
usually 2-
accompanied by fever
speciments from two or more
4 days
and abdominal cramps
ill persons
OR
Isolation of organism from
epidemiologically implicated
food
30 min-8
Vomiting, diarrhea
Isolation of organism of same
11. Staphylococcus
hrs,
phage type from stool or
aureus
usually 2-
vomits or two or more ill
4 hrs
persons
OR
Detection of enterotoxin in
epidemiologically implicated
food
OR
Isolation of >105 organisms/g
from epidemiologically
implicated food, provided
specimen properly handled
1-4 days
Fever, pharyngitis,
Isolation of organism of same
12. Streptococcus
scarlet fever, upper
M- or T-type from throats of
Group A
respiratory infection
two or more ill persons
OR
Isolation of organism of same
M- or T-type from
epidemiologically implicated
food
137
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