Serviços Personalizados
Journal
Artigo
Indicadores
- Citado por SciELO
- Acessos
Links relacionados
- Similares em SciELO
Compartilhar
Revista biomédica
versão On-line ISSN 2007-8447versão impressa ISSN 0188-493X
Resumo
CALDERON-ARGUEDAS, Ólger et al. Papel potencial de Aedes albopictus Skuse en la transmisión de virus dengue (DENV) en una zona de actividad piñera de Costa Rica. Rev. biomédica [online]. 2019, vol.30, n.2, pp.33-41. Epub 06-Set-2019. ISSN 2007-8447. https://doi.org/10.32776/revbiomed.v30i2.640.
Objective
To evaluate, under an ecological perspective, the presence of Aedes albopictus and the wild infection by dengue viruses (DENV) in an area of pineapple activity in Costa Rica.
Materials and methods
Adult mosquitoes were collected in forest galleries limiting pineapple plantations, houses adjacent to plantations (<1 km), and distant houses (1-10 km). Shannon-Wiener index was used to estimate biodiversity. Larval infestation was evaluated in pineapple plants and houses, and aedic house (HI) and container (CI) indices were calculated. Detection of DENV in Ae. albopictus adults (bodies and heads) and larvae was performed by RT-PCR and sequencing.
Results
A total 1376 adult mosquitoes were collected: Ae. albopictus (5.81%), Anopheles apicimacula (5.01%), Culex coronator (11.55%), Cx. inflictus (6.1%), Cx. nigripalpus (48.11%), Cx. quinquefasciatus (23.34%), and Limatus durhamii (0.07%). Biodiversity index was higher in forest galleries. Most adult Ae. albopictus were collected in forests close to pineapple fields (73/80), although only 2 larvae were detected in pineapple plants. Larval indices in adjacent houses (HI: 40.7%, CI: 26.9%) and distant houses (HI: 51.7%, CI: 29.6%) were similar (HI Z=0.56, p=0.58; CI Z=0.16, p=0.87). DENV-2 and DENV-3 were detected in 2/20 “pools” of Ae. albopictus heads and DENV-1 in 2/74 “pools” of larvae.
Conclusion
Forest galleries that are in proximity to pineapple plantations could be considered “ecological islands” that are suitable for refuge of Ae. albopictus. Presence of DENV in adults and larvae suggests an active role for Ae. albopictus in virus transmission within this ecosystem.
Palavras-chave : Aedes; Culicidae; dengue; Flavivirus; Costa Rica.