Table 2.

Identified Risk Factors of Hepatitis A Cases, Before and After Intensive Investigation: May 31, 1996 Through December 3, 1996, Salt Lake County, Utah (n = 332)

Reported Risk Factors*Before Intensive Investigation
n (%)
After Intensive Investigation
n (%)
Close contact with a confirmed or suspect case60 (18)93 (28)
International travel5 (2)5 (2)
Homosexual or bisexual activity20 (6)20 (6)
Consumption of raw shellfish5 (2)5 (2)
Illegal drug use99 (30)100 (30)
Exposure to infected food handler0 (0)3 (<1)
School outbreak0 (0)10 (3)
Attend or employed in a child care setting23 (7)23 (7)
Household contact attends or is employed in a child care setting42 (13)33 (10)
No identified risk factors132 (40)106 (32)
  • * Reported during the exposure period. Categories are not mutually exclusive.