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Table 4a FoodNet–Number of Laboratory–Confirmed Infections by Year 2011

Number of laboratory-confirmed bacterial and parasitic infections in 2011*, by pathogen and age group, Foodborne Diseases Active Surveillance Network (FoodNet), United States
Age group (yrs)
Pathogen <5 5-9 10-19 20-64 ≥65 Total
Total 3,603 1,434 1,873 9,445 2,423 18,778
Campylobacter 734 318 603 4,176 902 6,733
Listeria 4 0 2 50 78 134
Salmonella 2,047 626 771 3,343 971 7,758
Shigella 389 297 120 649 58 1,513
STEC§ O157 111 61 78 160 53 463
STEC non-O157 146 51 113 161 38 509
Vibrio 5 4 17 98 30 154
Yersinia 36 6 19 55 42 158
Cryptosporidium 131 71 149 736 247 1,334
Cyclospora 0 0 1 17 4 22

*Data are preliminary. 19 records with missing age not included.
Listeria cases defined as isolation of L. monocytogenes from a normally sterile site or, in the setting of miscarriage or stillbirth, isolation of L. monocytogenes from placental or fetal tissue. In cases of pregnancy-associated listeriosis, case may be mother, infant, or both, depending on source(s) of isolation.
§Shiga toxin-producing Escherichia coli

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Table 4b FoodNet–Incidence of Laboratory–Confirmed Infections by Year 2011

Incidence* of laboratory-confirmed bacterial and parasitic infections in 2011, by pathogen and age group, Foodborne Diseases Active Surveillance Network (FoodNet), United States
Age group (yrs)
Pathogen <5 5-9 10-19 20-64 ≥65 Total
Campylobacter 24.22 10.32 9.44 14.55 15.15 14.31
Listeria§ 0.13 0.00 0.03 0.17 1.31 0.28
Salmonella 67.55 20.31 12.07 11.65 16.31 16.47
Shigella 12.84 9.64 1.88 2.26 0.97 3.21
STEC O157 3.66 1.98 1.22 0.56 0.89 0.98
STEC non-O157 4.82 1.65 1.77 0.56 0.64 1.08
Vibrio 0.17 0.13 0.27 0.34 0.50 0.33
Yersinia 1.19 0.19 0.30 0.19 0.71 0.34
Cryptosporidium 4.32 2.30 2.33 2.57 4.15 2.83
Cyclospora 0.00 0.00 0.02 0.06 0.07 0.05

*Per 100,000 population
Data are preliminary. 19 records with missing age not included.
§Listeria cases defined as isolation of L. monocytogenes from a normally sterile site or, in the setting of miscarriage or stillbirth, isolation of L. monocytogenes from placental or fetal tissue. In cases of pregnancy-associated listeriosis, case may be mother, infant, or both, depending on source(s) of isolation.
Shiga toxin-producing Escherichia coli

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