Gastrointestinal (GI) diseases are caused by bacterial, viral, or parasitic organisms that are shed in the feces and can be spread person-to-person or through contaminated food and water. Symptoms of GI diseases usually include nausea, vomiting, and diarrhea.
There were 228 enteric disease cases reported during 2016. Norovirus was the most frequently reported enteric disease with 69 cases (30.3%), followed by salmonellosis with 42 cases (18.4%), campylobacteriosis with 41 cases (18.0%), cryptosporidiosis with 27 cases (11.8%), giardiasis with 27 cases (11.8%), Shiga toxin-producing E. coli (STEC) with 11 cases (4.8%), shigellosis with nine cases (3.9%), cyclosporiasis with one case (<1%), and listeriosis with one case (<1%).
Gastrointestinal Diseases, Davis County, 2016
Just over half of the cases were female (51.3%) and rates of illness were highest among those between 70-79 years of age.
Incidence of Gastrointestinal Diseases by Age Group, Davis County, 2016
GI diseases were reported among residents of every city within Davis County, except Fruit Heights. The rate by city varied, but the average rate of enteric diseases was 55.4 per 100,000 residents.
Incidence of Gastrointestinal Diseases by City, Davis County, 2016
GI diseases are reported year-round, with a higher incidence typically during the summer months. In 2016, gastrointestinal illnesses peaked during December when an outbreak of norovirus was reported. However, gastrointestinal illnesses were also elevated during the summer season of 2016.
Gastrointestinal Diseases by Month Reported, Davis County, 2016