Burden of Rotavirus and Enteric Bacterial Pathogens among Children under 5 Years of Age Hospitalized with Diarrhea in Suburban and Rural Areas in Kenya

  • Shah Mohammad
    Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute Project Centre for Infectious Disease Research in Asia and Africa, Nagasaki University Institute of Tropical Medicine Leading Graduate School Program, Nagasaki University
  • Odoyo Erick
    Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute Project
  • Wandera Ernest
    Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute Project Centre for Infectious Disease Research in Asia and Africa, Nagasaki University Institute of Tropical Medicine Leading Graduate School Program, Nagasaki University
  • Kathiiko Cyrus
    Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute Project
  • Bundi Martin
    Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute Project
  • Miringu Gabriel
    Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute Project
  • Guyo Sora
    Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute Project
  • Komoto Satoshi
    Department of Virology and Parasitology, School of Medicine, Fujita Health University
  • Nyangao James
    Centre for Virus Research, Kenya Medical Research Institute (KEMRI)
  • Karama Mohamed
    Centre for Public Health Research, Kenya Medical Research Institute (KEMRI)
  • Tsuji Takao
    Department Microbiology, School of Medicine, Fujita Health University
  • Taniguchi Koki
    Department of Virology and Parasitology, School of Medicine, Fujita Health University
  • Morita Kouichi
    Centre for Infectious Disease Research in Asia and Africa, Nagasaki University Institute of Tropical Medicine Department of Virology, Nagasaki University Institute of Tropical Medicine Leading Graduate School Program, Nagasaki University
  • Ichinose Yoshio
    Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute Project Centre for Infectious Disease Research in Asia and Africa, Nagasaki University Institute of Tropical Medicine Leading Graduate School Program, Nagasaki University

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<p>This cross-sectional descriptive study aimed to investigate the incidence of rotavirus and enteric bacterial infections among children up to 5 years old with diarrhea living in suburban and rural areas of Kenya. Between August 2011 and December 2013, a total of 1,060 diarrheal fecal specimens were obtained from 722 children at Kiambu County Hospital (KCH), located in a suburban area, and from 338 children from Mbita District Hospital (MDH), located in a rural part of western Kenya. Of the 1,060 isolates, group A rotavirus was detected in 29.6% (214/722) and 11.2% (38/338) fecal specimens from KCH and MDH, respectively. Diarrheagenic Escherichia coli (DEC) was found to be the most frequently isolated bacterial pathogens in both study areas (32.8% at KCH and 44.1% at MDH). Two different mixed infection patterns (virus/bacteria and bacteria/bacteria) were observed among patients. A significantly higher infection rate of rotavirus (17.6%, p = 0.001) and DEC (10.5%, p = 0.007) were observed during the dry season. Our study found that in both suburban and rural settings in Kenya, rotavirus and DEC are the principal cause of pediatric diarrhea and exhibit higher incidence during the dry season.</p>

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