Impact of climate and mosquito vector abundance on sylvatic arbovirus circulation dynamics in Senegal
Autor(es): Althouse Benjamin M, Hanley Kathryn A, Diallo Mawlouth, Sall Amadou A, Ba Yamar, Faye Ousmane, Diallo Diawo, Watts Douglas M, Weaver Scott C, Cummings Derek A T
Resumo: Sylvatic arboviruses have been isolated in Senegal over the last 50 years. The ecological drivers of the pattern - frequency of virus infection in these species are largely unknown. We used time series analysis - Bayesian hierarchical count modeling on a long-term arbovirus dataset to test associations between mosquito abundance, weather variables, - the frequency of isolation of dengue, yellow fever, chikungunya, - Zika viruses. We found little correlation between mosquito abundance - viral isolations. Rainfall was a negative predictor of dengue virus (DENV) isolation but a positive predictor of Zika virus isolation. Temperature was a positive predictor of yellow fever virus (YFV) isolations but a negative predictor of DENV isolations. We found slight interference between viruses, with DENV negatively associated with concurrent YFV isolation - YFV negatively associated with concurrent isolation of chikungunya virus. These findings begin to characterize some of the ecological associations of sylvatic arboviruses with each other - climate - mosquito abundance.
Imprenta: The American Journal of Tropical Medicine and Hygiene, v. 92, n. 1, p. 88-97, 2015
Identificador do objeto digital: 10.4269/ajtmh.13-0617
Descritores: Chikungunya virus - Arbovirus ; Chikungunya virus - Cytopathology ; Chikungunya virus - Pathogenesis ; Chikungunya virus - Viral infections ; Chikungunya Virus - Virus ; Chikungunya virus - Transmission ; Chikungunya virus - Chikungunya fever ; Chikungunya virus - Dengue ; Chikungunya virus - Epidemiology ; Chikungunya virus - Immunology ; Chikungunya virus - Public health ; Chikungunya virus - Zika fever
Data de publicação: 2015