6533b7d1fe1ef96bd125d849

RESEARCH PRODUCT

Spatio-temporal cluster detection of chickenpox in Valencia, Spain in the period 2008-2012.

Francisco MontesAna Míguez SantiyánAdina IftimiFrancisco Martínez-ruiz

subject

Health (social science)Geography Planning and DevelopmentPrevalenceMedicine (miscellaneous)lcsh:G1-922medicine.disease_causeChickenpoxSpatio-Temporal AnalysismedicineCluster (physics)HumansValenciaChickenpoxbiologyHealth PolicyIncidence (epidemiology)IncidenceVaricella zoster virusSpatiotemporal patternmedicine.diseasebiology.organism_classificationAirborne diseaseAirborne disease epidemiologyGeographySpatio-temporal inhomogeneous K-functionSpainVaricella zoster virusEpidemiologic Research DesignCartographylcsh:Geography (General)Demography

description

Chickenpox is a highly contagious airborne disease caused by <em>Varicella zoster</em>, which affects nearly all non-immune children worldwide with an annual incidence estimated at 80-90 million cases. To analyze the spatiotemporal pattern of the chickenpox incidence in the city of Valencia, Spain two complementary statistical approaches were used. First, we evaluated the existence of clusters and spatio-temporal interaction; secondly, we used this information to find the locations of the spatio-temporal clusters via the space-time permutation model. The first method used detects any aggregation in our data but does not provide the spatial and temporal information. The second method gives the locations, areas and time-frame for the spatio-temporal clusters. An overall decreasing time trend, a pronounced 12-monthly periodicity and two complementary periods were observed. Several areas with high incidence, surrounding the center of the city were identified. The existence of aggregation in time and space was observed, and a number of spatio-temporal clusters were located.

10.4081/gh.2015.341https://pubmed.ncbi.nlm.nih.gov/26054522