Background Epidemiological characteristics of clinical malaria may differ from asymptomatic infections, thus both cross-sectional parasite screening and longitudinal clinical case surveillance are necessary for malaria transmission monitoring and control. Methods In order to monitor malaria transmission, surveillance of clinical malaria from two years of active case surveillance in three cohorts of 6,750 individuals, asymptomatic parasitaemia cases of 5,300 individuals and clinical cases in three study areas were carried out in the western Kenyan highlands in 2009 and 2010. Age distribution, seasonality and spatial clustering were analysed. Results The results revealed a significant difference in the age distribution of clinical cases between passive and active case surveillance, and between clinical case rate and asymptomatic parasite rate. The number of reported cases from health facilities significantly underestimated clinical malaria incidence. The increase in asymptomatic parasite prevalence from low to high transmission seasons was significantly higher for infants (
【저자키워드】 Temporal changes, seasonality, age distribution, Active case surveillance, Passive case surveillance, Asymptomatic parasite screening, Transmission hotspot,
Active case surveillance, passive case surveillance and asymptomatic malaria parasite screening illustrate different age distribution, spatial clustering and seasonality in western Kenya
능동 사례 감시, 수동 사례 감시 및 무증상 말라리아 기생충 검사는 서부 케냐에서 다양한 연령 분포, 공간 집 clustering 및 계절성을 보여줍니다.
[키워드] Active case surveillance
age distribution
Asymptomatic parasite screening
Passive case surveillance
seasonality
Temporal changes
Transmission hotspot
[Category] 말라리아,
[Article Type] Research
[Source] PMC
All Keywords