RESUMO
French Guiana (FG), a French overseas territory in South America, is susceptible to tropical diseases, including arboviruses. The tropical climate supports the proliferation and establishment of vectors, making it difficult to control transmission. In the last ten years, FG has experienced large outbreaks of imported arboviruses such as Chikungunya and Zika, as well as endemic arboviruses such as dengue, Yellow fever, and Oropouche virus. Epidemiological surveillance is challenging due to the differing distributions and behaviors of vectors. This article aims to summarize the current knowledge of these arboviruses in FG and discuss the challenges of arbovirus emergence and reemergence. Effective control measures are hampered by the nonspecific clinical presentation of these diseases, as well as the Aedes aegypti mosquito's resistance to insecticides. Despite the high seroprevalence of certain viruses, the possibility of new epidemics cannot be ruled out. Therefore, active epidemiological surveillance is needed to identify potential outbreaks, and an adequate sentinel surveillance system and broad virological diagnostic panel are being developed in FG to improve disease management.
Assuntos
Aedes , Infecções por Arbovirus , Arbovírus , Febre de Chikungunya , Dengue , Infecção por Zika virus , Zika virus , Animais , Humanos , Infecções por Arbovirus/diagnóstico , Infecções por Arbovirus/epidemiologia , Guiana Francesa/epidemiologia , Estudos Soroepidemiológicos , Febre de Chikungunya/epidemiologia , Infecção por Zika virus/epidemiologia , América do Sul/epidemiologia , Dengue/diagnóstico , Dengue/epidemiologiaRESUMO
We report a case of vertical transmission of Tonate virus in a pregnant woman from French Guiana. The fetus showed severe necrotic and hemorrhagic lesions of the brain and spinal cord. Clinicians should be made aware of possible adverse fetal outcomes in pregnant women infected with Tonate virus.
Assuntos
Alphavirus , Encéfalo , Feminino , Guiana Francesa/epidemiologia , Humanos , Transmissão Vertical de Doenças Infecciosas , GravidezRESUMO
Although essential for control strategies, knowledge about transmission cycles is limited for Venezuelan equine encephalitis complex alphaviruses (VEEVs). After testing 1,398 bats from French Guiana for alphaviruses, we identified and isolated a new strain of the encephalitogenic VEEV species Tonate virus (TONV). Bats may contribute to TONV spread in Latin America.