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 176 gastrointestinal disease cases reported during 2017. Campylobacteriosis was the most frequently reported disease with 59 cases (33.5%), followed by salmonellosis with 41 cases (23.3%), norovirus with 26 cases (14.8%), giardiasis with 18 cases (10.2%), Shiga toxin-producing E. coli (STEC) with 13 cases (7.4%), cryptosporidiosis with three cases (1.7%), shigellosis with three cases (1.7%), and vibriosis with two cases (1.1%) (see Figure 5).
Gastrointestinal Diseases, Davis County, 2017
Just over half of the cases were male (50.6%) and rates of illness were highest among those greater than 80 years of age.
Incidence of Gastrointestinal Diseases by Age Group, Davis County, 2017
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 46.4 per 100,000 residents.
Incidence of Gastrointestinal Diseases by City, Davis County, 2017
GI diseases are reported year-round, with a higher incidence typically during the summer months. In 2017, gastrointestinal illnesses peaked during November when two outbreaks of norovirus were reported. However, gastrointestinal illnesses were also elevated during the summer season of 2017.
Gastrointestinal Diseases by Month Reported, Davis County, 2017