The seroprevalence and seroincidence of dengue virus infection in western Kenya

Summary Epidemics of dengue fever have been documented throughout the African continent over the past several decades, however little is known about the prevalence or incidence of dengue virus infection in the absence of an outbreak. No studies have analyzed the prevalence of dengue infection in wes...

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Bibliographic Details
Published in:Travel medicine and infectious disease 2011-09, Vol.9 (5), p.246-248
Main Authors: Blaylock, Jason M, Maranich, Ashley, Bauer, Kristen, Nyakoe, Nancy, Waitumbi, John, Martinez, Luis J, Lynch, Julia
Format: Article
Language:English
Subjects:
Antibodies, Viral - blood
Child, Preschool
Coastal zone
Dengue - epidemiology
Dengue - immunology
Dengue virus
Dengue Virus - immunology
Dengue Virus - isolation & purification
Enzyme-Linked Immunosorbent Assay
Epidemics
Humans
Immunoglobulin G - blood
Incidence
Infant
Infectious Disease
Kenya
Kenya - epidemiology
Prevalence
Seroepidemiologic Studies
Seroprevalence
Travel medicine
Vector-borne diseases
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Summary:Summary Epidemics of dengue fever have been documented throughout the African continent over the past several decades, however little is known about the prevalence or incidence of dengue virus infection in the absence of an outbreak. No studies have analyzed the prevalence of dengue infection in western Kenya to date. This study describes the seroincidence and seroprevalence of dengue infection in western Kenya. Banked sera obtained from 354 healthy, afebrile children ages 12–47 months from Kisumu District, Kenya, were analyzed for antibodies to dengue virus using an IgG indirect ELISA. We found a seroprevalence of 1.1% (4 of 354 samples) and incidence of 8.5 seroconversions per 1000 persons per year in this study population. This appears to be similar to that previously reported in coastal regions of the country outside of known epidemic periods. Since there has never been a reported dengue epidemic in western Kenya, continued investigation and evaluation in a patient population presenting with fever is necessary to further confirm this finding.
ISSN:1477-8939
1873-0442
DOI:10.1016/j.tmaid.2011.06.005