Geographical spread of influenza incidence in Spain during the 2009 A(H1N1) pandemic wave and the two succeeding influenza seasons.
The aim of this study was to monitor the spatio-temporal spread of influenza incidence in Spain during the 2009 pandemic and the following two influenza seasons 2010-2011 and 2011-2012 using a Bayesian Poisson mixed regression model; and implement this model of geographical analysis in the Spanish Influenza Surveillance System to obtain maps of influenza incidence for every week. In the pandemic wave the maps showed influenza activity spreading from west to east. The 2010-2011 influenza epidemic wave plotted a north-west/south-east pattern of spread. During the 2011-2012 season the spread of influenza was geographically heterogeneous. The most important source of variability in the model is the temporal term. The model of spatio-temporal spread of influenza incidence is a supplementary tool of influenza surveillance in Spain.
CIBER en Epidemiología y Salud Pública (CIBERESP), Madrid,Spain.
D
D
Gomez-Barroso
Centro Superior de Investigación en Salud Pública (CSISP-FISABIO), Valencia,Spain.
M A
MA
Martinez-Beneito
National Center for Epidemiology, Carlos III Institute of Health.
V
V
Flores
Universitat de València,Departament d'Estadistica i Investigació Operativa, Valencia,Spain.
R
R
Amorós
CIBER en Epidemiología y Salud Pública (CIBERESP), Madrid,Spain.
C
C
Delgado
Universidad CEU - Cardenal Herrera,Moncada,Spain.
P
P
Botella
Área de Epidemiología de la Dirección General de Investigación y Salud Pública (DGSP) de la Generalitat Valenciana,Valencia,Spain.
O
O
Zurriaga
CIBER en Epidemiología y Salud Pública (CIBERESP), Madrid,Spain.
A
A
Larrauri
D001499:Bayes Theorem; D004196:Disease Outbreaks; D006801:Humans; D015994:Incidence; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000453:epidemiology* / Q000635:transmission / Q000821:virology; D011159:Population Surveillance; D013029:Space-Time Clustering; D013030:Spain / Q000453:epidemiology