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Kansas City, KS. During May 1-Dec. 31, 2005, a total of 201 confirmed Shigella sonnei infections were reported among residents of Kansas City, KS. Median age of patients was 7 years (range: 1-70 years).

Healthcare Infection Prevention: Day care shigella outbreak case reports

January 2, 2015

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Healthcare Infection Prevention

Day care shigella outbreak case reports

Kansas City, KS. During May 1-Dec. 31, 2005, a total of 201 confirmed Shigella sonnei infections were reported among residents of Kansas City, KS. Median age of patients was 7 years (range: 1-70 years). Among patients ages ≤10 years, 66 (51%) were female; among patients aged ≥18 years, 41 (80%) were female. Information about patient exposures to day care settings was not collected. The Kansas Department of Health and Environment Laboratory conducted antimicrobial susceptibility testing on 60 isolates; 53 (88%) isolates were resistant to both ampicillin and TMP/SMX, eight (13%) were resistant to ampicillin/sulbactam, and none were resistant to ceftriaxone, gentamicin, or ciprofloxacin.

• Kansas City, MO. During May 1-Dec. 31, 2005, a total of 645 confirmed and 85 probable shigellosis cases in Kansas City, MO. The median age of patients was 6 years (range: 0-67 years). Overall, 532 (74.0%) infections occurred among children aged ≤10 years; 255 (48%) were among females. Among 157 patients aged ≥18 years, 117 (74.5%) were female. A total of 42 licensed day care centers each had one or more cases of shigellosis among attendees. Routine surveillance data indicated that 36% of patients or one of their household members had attended a day care center; however, a random sample of 10 patients who were reinterviewed indicated that an estimated 82% of patients or one of their household members might have had exposure to a day care center. Antibiotic susceptibility testing of 28 isolates found that 25 (89%) were resistant to ampicillin and TMP/SMX. No resistance to ceftriaxone, ciprofloxacin, or nalidixic acid was observed.

• Kentucky. During May 1-Aug. 31, 2005, a total of 148 confirmed cases of S. sonnei infection were reported in Fayette County, which represented a 42-fold increase above the previous five-year baseline. The median age of patients was 4 years (range: 0-61 years); among children aged ≤10 years, 59 (50%) were female. Among adults aged ≥18 years, 18 (78%) were female. A total of 137 (93%) cases occurred among attendees, their family members, or staff at 16 day care centers in Fayette County. Twelve isolates underwent antimicrobial susceptibility testing at the University of Kentucky; all were resistant to ampicillin and TMP/SMX, and none were resistant to ceftriaxone or ciprofloxacin.