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Epidemiologia e Serviços de Saúde

versión impresa ISSN 1679-4974versión On-line ISSN 2237-9622

Resumen

LUZA, André Luís et al. Dynamic mapping of the probability of infestation by urban arbovirus vectors in the municipalities of Rio Grande do Sul state, Brazil, 2016-2017. Epidemiol. Serv. Saúde [online]. 2021, vol.30, n.2, e2020154.  Epub 16-Abr-2021. ISSN 1679-4974.  http://dx.doi.org/10.1590/s1679-49742021000200006.

Objective

To compare official mapping with probabilistic mapping of infestation by Aedes spp. in the municipalities of Rio Grande do Sul state, Brazil.

Methods

This was an ecological study using data from samples of mosquito breeding sites collected in 2016-2017; official classification was obtained from epidemiological reports, and infestation per municipality and week was estimated by fitting a dynamic site-occupancy model to data from municipal epidemiological surveillance.

Results

187,245 samples collected in 473 municipalities returned 10,648 detections of Aedes aegypti, and 8,414 detections of Aedes albopictus; official mapping agrees with probabilistic mapping in municipalities in the northwestern and western regions of the state. The mappings are not in agreement in the eastern, central, northeastern and southern regions, revealing municipalities officially not infested but with high probability of infestation and notification of arbovirus infection.

Conclusion

While official classification identified critically infested municipalities in the state’s northwestern and western regions, it did not identify infestation in municipalities with possible false zero errors and where infestation varies over time.

Palabras clave : Aedes; Ecological Studies; Models, Theoretical; Disease Vectors; Epidemiological Monitoring.

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