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Table 4 Sporadic domestic reportable gastrointestinal illnesses in Ontario by known or unknown exposure between 2007 and 2009

From: A descriptive study of reportable gastrointestinal illnesses in Ontario, Canada, from 2007 to 2009

Reportable disease

Domestic sporadic cases

Primary source (%)**

Primary setting (%)†

 

n

Known

Unknown

Known

Unknown

Amebiasis

594

20.2%

79.8%

2.5%

97.5%

Botulism

9

11.1%

88.9%

11.1%

88.9%

Campylobacteriosis

4,982

25.5%

74.5%

16.0%

84.0%

Cryptosporidiosis

473

34.0%

66.0%

19.5%

80.5%

Cyclosporiasis

103

17.5%

82.5%

9.7%

90.3%

Giardiasis

1,646

20.9%

79.1%

10.0%

90.0%

Hepatitis A

152

35.5%

64.5%

10.5%

89.5%

Listeriosis

79

15.2%

84.8%

11.4%

88.6%

Paratyphoid Fever

21

9.5%

90.5%

4.8%

95.2%

Salmonellosis

4,107

28.0%

72.0%

18.4%

81.6%

Shigellosis

310

29.0%

71.0%

9.0%

91.0%

Typhoid Fever

32

6.2%

93.8%

6.2%

93.8%

VTEC-illness

388

40.7%

59.3%

27.3%

72.7%

Yersiniosis

445

18.9%

81.1%

14.6%

85.4%

Total

13,341

26.0%

74.0%

15.4%

84.6%

  1. ** The most likely source as identified on case follow-up (excludes cases with multiple exposures, travel cases, and outbreak cases).
  2. † The most likely type of location where exposure took place based on case follow-up (excludes cases with multiple exposures, travel cases, and outbreak cases).