A national cholera epidemic with high case fatality rates--Kenya 2009

J Infect Dis. 2013 Nov 1:208 Suppl 1:S69-77. doi: 10.1093/infdis/jit220.

Abstract

Background: Cholera remains endemic in sub-Saharan Africa. We characterized the 2009 cholera outbreaks in Kenya and evaluated the response.

Methods: We analyzed surveillance data and estimated case fatality rates (CFRs). Households in 2 districts, East Pokot (224 cases; CFR = 11.7%) and Turkana South (1493 cases; CFR = 1.0%), were surveyed. We randomly selected 15 villages and 8 households per village in each district. Healthcare workers at 27 health facilities (HFs) were surveyed in both districts.

Results: In 2009, cholera outbreaks caused a reported 11 425 cases and 264 deaths in Kenya. Data were available from 44 districts for 6893 (60%) cases. District CFRs ranged from 0% to 14.3%. Surveyed household respondents (n = 240) were aware of cholera (97.5%) and oral rehydration solution (ORS) (87.9%). Cholera deaths were reported more frequently from East Pokot (n = 120) than Turkana South (n = 120) households (20.7% vs. 12.3%). The average travel time to a HF was 31 hours in East Pokot compared with 2 hours in Turkana South. Fewer respondents in East Pokot (9.8%) than in Turkana South (33.9%) stated that ORS was available in their village. ORS or intravenous fluid shortages occurred in 20 (76.9%) surveyed HFs.

Conclusions: High CFRs in Kenya are related to healthcare access disparities, including availability of rehydration supplies.

Keywords: Kenya; cholera; nomadic/semi-pastoral; outbreak; sanitation; water.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Child
  • Child, Preschool
  • Cholera / epidemiology*
  • Cholera / mortality*
  • Epidemics / statistics & numerical data*
  • Female
  • Humans
  • Infant
  • Kenya / epidemiology
  • Male
  • Middle Aged
  • Time Factors
  • Young Adult