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Clin Infect Dis. 2012 Jun;54 Suppl 5:S472-9. doi: 10.1093/cid/cis051.

Estimates of enteric illness attributable to contact with animals and their environments in the United States.

Author information

1
Epidemic Intelligence Service Program, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA. crhale@cdc.gov

Abstract

BACKGROUND:

Contact with animals and their environment is an important, and often preventable, route of transmission for enteric pathogens. This study estimated the annual burden of illness attributable to animal contact for 7 groups of pathogens: Campylobacter species, Cryptosporidium species, Shiga toxin-producing Escherichia coli (STEC) O157, STEC non-O157, Listeria monocytogenes, nontyphoidal Salmonella species, and Yersinia enterocolitica.

METHODS:

By using data from the US Foodborne Diseases Active Surveillance Network and other sources, we estimated the proportion of illnesses attributable to animal contact for each pathogen and applied those proportions to the estimated annual number of illnesses, hospitalizations, and deaths among US residents. We established credible intervals (CrIs) for each estimate.

RESULTS:

We estimated that 14% of all illnesses caused by these 7 groups of pathogens were attributable to animal contact. This estimate translates to 445 213 (90% CrI, 234 197-774 839) illnesses annually for the 7 groups combined. Campylobacter species caused an estimated 187 481 illnesses annually (90% CrI, 66 259-372 359), followed by nontyphoidal Salmonella species (127 155; 90% CrI, 66 502-219 886) and Cryptosporidium species (113 344; 90% CrI, 22 570-299 243). Of an estimated 4933 hospitalizations (90% CrI, 2704-7914), the majority were attributable to nontyphoidal Salmonella (48%), Campylobacter (38%), and Cryptosporidium (8%) species. Nontyphoidal Salmonella (62%), Campylobacter (22%), and Cryptosporidium (9%) were also responsible for the majority of the estimated 76 deaths (90% CrI, 5-211).

CONCLUSIONS:

Animal contact is an important transmission route for multiple major enteric pathogens. Continued efforts are needed to prevent pathogen transmission from animals to humans, including increasing awareness and encouraging hand hygiene.

PMID:
22572672
DOI:
10.1093/cid/cis051
[Indexed for MEDLINE]
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