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Table 2a FoodNet–Number of Laboratory–Confirmed Infections by Year 2013

Number of culture-confirmed bacterial and laboratory-confirmed parasitic infections, and postdiarrheal hemolytic uremic syndrome (HUS), by year and pathogen, Foodborne Diseases Active Surveillance Network (FoodNet), United States, 1996–2013*
Pathogen/Syndrome Year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
Surveillance population (millions)†† 14.27 16.13 20.71 25.86 30.64 34.85 37.86 41.75 44.34 44.77 45.32 45.84 46.33 46.76 47.15 47.52 47.90 47.90
Campylobacter 3,367 3,960 4,022 3,832 4,708 4,751 5,064 5,272 5,686 5,692 5,770 5,871 5,854 6,058 6,372 6,786 6,812 6,621
Listeria† 61 70 109 104 101 90 94 129 114 131 129 118 121 149 125 135 123 123
Salmonella 2,064 2,186 2,820 4,155 4,315 5,240 6,149 6,038 6,498 6,504 6,689 6,828 7,456 7,023 8,273 7,814 7,842 7,277
Shigella 1,269 1,269 1,480 966 2,350 2,219 4,113 3,039 2,248 2,095 2,765 2,869 3,043 1,854 1,779 1,541 2,141 2,309
STEC§ O157 374 337 491 502 623 542 641 444 402 473 590 548 518 461 446 463 533 552
STEC non-O157 - - - - 57 69 60 69 113 134 238 283 247 286 452 522 557 561
Vibrio 21 52 50 48 54 79 104 110 123 121 156 110 136 160 195 157 197 242
Yersinia 147 139 181 162 133 144 169 162 175 163 163 164 166 152 159 163 159 171
Cryptosporidium – 452 566 441 536 575 531 481 637 1,327 879 1,225 1,052 1,345 1,296 1,358 1,258 1,186
Cyclospora – 49 9 16 22 32 42 15 15 65 43 13 17 32 28 22 15 14
HUS** – – – – 42 39 52 37 31 44 66 62 52 44 57 37 38 –

*Data are preliminary
†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
§Shiga toxin-producing Escherichia coli
Surveillance not conducted for this pathogen in this year
**Numbers of cases of postdiarrheal HUS in children aged <5 years
††U.S. Census Bureau population estimates for the surveillance area for 2012. Final incidence rates will be reported when population estimates for 2013 are available.

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Table 2b FoodNet–Incidence of Laboratory–Confirmed Infections by Year 2013

Incidence* of culture-confirmed bacterial and laboratory-confirmed parasitic infections, and postdiarrheal hemolytic uremic syndrome (HUS), by year and pathogen, Foodborne Diseases Active Surveillance Network (FoodNet), United States, 1996–2013†
Pathogen /
Syndrome		 Year 2010 National health objective§ 2020 National health objective
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
Surveillance population (millions)††† 14.27 16.13 20.71 25.86 30.64 34.85 37.86 41.75 44.34 44.77 45.32 45.84 46.33 46.76 47.15 47.52 47.90 47.90    
Campylobacter 23.59 24.55 19.42 14.82 15.36 13.63 13.38 12.63 12.82 12.71 12.73 12.81 12.64 12.96 13.52 14.28 14.22 13.82 12.3 8.50
Listeria** 0.43 0.43 0.53 0.40 0.33 0.26 0.25 0.31 0.26 0.29 0.28 0.26 0.26 0.32 0.27 0.28 0.26 0.26 0.24 0.20
Salmonella 14.46 13.55 13.61 16.07 14.08 15.04 16.24 14.46 14.65 14.53 14.76 14.89 16.09 15.02 17.55 16.44 16.37 15.19 6.8 11.40
Shigella 8.89 7.87 7.14 3.74 7.67 6.37 10.86 7.28 5.07 4.68 6.10 6.26 6.57 3.96 3.77 3.24 4.47 4.82 N/A†† N/A
STEC§§ O157 2.62 2.09 2.37 1.94 2.03 1.56 1.69 1.06 0.91 1.06 1.30 1.20 1.12 0.99 0.95 0.97 1.11 1.15 1.0 0.60
STEC non-O157 -¶¶ - - - 0.19 0.20 0.16 0.17 0.25 0.30 0.53 0.62 0.53 0.61 0.96 1.10 1.16 1.17 N/A N/A
Vibrio 0.15 0.32 0.24 0.19 0.18 0.23 0.27 0.26 0.28 0.27 0.34 0.24 0.29 0.34 0.41 0.33 0.41 0.51 N/A 0.20
Yersinia 1.03 0.86 0.87 0.63 0.43 0.41 0.45 0.39 0.39 0.36 0.36 0.36 0.36 0.33 0.34 0.34 0.33 0.36 N/A 0.30
Cryptosporidium - 2.90 2.26 1.46 1.57 1.50 1.32 1.09 1.44 2.96 1.94 2.67 2.27 2.88 2.75 2.86 2.63 2.48 N/A N/A
Cyclospora - 0.31 0.04 0.05 0.06 0.08 0.10 0.03 0.03 0.15 0.09 0.03 0.04 0.07 0.06 0.05 0.03 0.03 N/A N/A
HUS*** - - - - 2.04 1.66 2.05 1.33 1.05 1.48 2.21 2.05 1.71 1.45 1.88 1.23 1.27 – N/A 0.90

*Per 100,000 population
†Data are preliminary
§Healthy People 2010 objective targets for incidence of Campylobacter, Listeria, Salmonella, and Shiga toxin-producing Escherichia coli O157
Healthy People 2020 objective targets for incidence of Campylobacter, Listeria, Salmonella, Shiga toxin-producing Escherichia coli O157, Vibrio, and Yersinia infections, and HUS
**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
††No national health objective exists for these pathogens
§§Shiga toxin-producing Escherichia coli
Surveillance not conducted for this pathogen in this year
***Incidence of postdiarrheal HUS in children aged <5 years; denominator is surveillance population aged <5 years
†††U.S. Census Bureau population estimates for the surveillance area for 2012. Final incidence rates will be reported when population estimates for 2013 are available.

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