RESUMO
Surveillance is a critical component of any dengue prevention and control program. There is an increasing effort to use drones in mosquito control surveillance. Due to the novelty of drones, data are scarce on the impact and acceptance of their use in the communities to collect health-related data. The use of drones raises concerns about the protection of human privacy. Here, we show how willingness to be trained and acceptance of drone use in tech-savvy communities can help further discussions in mosquito surveillance. A cross-sectional study was conducted in Malaysia, Mexico, and Turkey to assess knowledge of diseases caused by Aedes mosquitoes, perceptions about drone use for data collection, and acceptance of drones for Aedes mosquito surveillance around homes. Compared with people living in Turkey, Mexicans had 14.3 (p < 0.0001) times higher odds and Malaysians had 4.0 (p = 0.7030) times the odds of being willing to download a mosquito surveillance app. Compared to urban dwellers, rural dwellers had 1.56 times the odds of being willing to be trained. There is widespread community support for drone use in mosquito surveillance and this community buy-in suggests a potential for success in mosquito surveillance using drones. A successful surveillance and community engagement system may be used to monitor a variety of mosquito spp. Future research should include qualitative interview data to add context to these findings.
Assuntos
Aedes , Dengue , Animais , Estudos Transversais , Dengue/epidemiologia , Dengue/prevenção & controle , Humanos , Malásia , México , Turquia , Dispositivos Aéreos não TripuladosRESUMO
RESUMEN La infección por el virus del dengue va en aumento en las regiones tropicales de Asia, África y América. Se estima que se producen de 50 a 100 millones de casos de esta enfermedad al año. En los últimos tiempos han aumentado los reportes de manifestaciones oculares en estos pacientes, las cuales ocurren en un rango de 5 a 7 días posteriores al inicio de los síntomas, aunque también pueden ocurrir más tarde, y generalmente existe buen pronóstico visual. Se realiza una revisión bibliográfica con el objetivo de ampliar el conocimiento sobre un tema poco tratado en nuestro medio. Se consultaron fundamentalmente artículos científicos de revistas, publicados en las bases de datos PubMED y Cochrane, así como textos básicos que abordan este tema en los últimos 5 años, a través de Google académico como motor de búsqueda. Se constató que se han reportado manifestaciones oculares en pacientes con dengue que van desde hallazgos en el segmento anterior sin afectación visual, hasta cuadros más intensos que interesan las estructuras del polo posterior del ojo. La fisiopatología de estos hallazgos aún se encuentra en estudio y no existe consenso para su tratamiento. A pesar de que el pronóstico visual de estas alteraciones es bueno, se reportan casos donde no es así y se precisa mayor comprensión sobre la fisiopatología de estas para un abordaje terapéutico más adecuado en cada caso(AU)
ABSTRACT Infection by dengue virus is on the increase in tropical regions of Asia, Africa and America. It has been estimated that 50 to 100 million cases of this disease occur every year. Recent years have witnessed a rise in the number of reports of ocular manifestations in dengue patients. These manifestations appear 5 to 7 days after symptom onset, though they could also occur later, and the visual prognosis is generally good. A bibliographic review was conducted with the purpose of broadening knowledge about a topic not commonly dealt with in our environment. The search was mainly aimed at scientific papers from journals, published in the databases PubMed and Cochrane, as well as basic texts addressing the study topic in the last 5 years, using the search engine Google Scholar. Ocular manifestations were found to have been reported in dengue patients. These range from findings in the anterior segment without any visual alteration to more intense episodes affecting the structures of the posterior pole of the eye. The physiopathology of these findings is still being studied, and there is no consensus about its treatment. Despite the good visual prognosis of these alterations, cases have been reported of a different outcome. Therefore, a better understanding is required of their physiopathology to achieve a more appropriate therapy for each case(AU)
Assuntos
Humanos , Dengue/etiologia , Oftalmopatias/fisiopatologia , Relatório de Pesquisa , Febre/fisiopatologia , Publicações Periódicas como Assunto , Literatura de Revisão como AssuntoRESUMO
Zika virus (ZIKV) is an arbovirus transmitted mainly by mosquitos of Aedes species. The virus has emerged in recent years and spread throughout North and South Americas. The recent outbreak of ZIKV started in Brazil (2015) has resulted in infections surpassing a million mark. Contrary to the previous beliefs that Zika causes mildly symptomatic infections fever, headache, rash, arthralgia, and conjunctivitis, the recent outbreak associated ZIKV to serious neurological complications such as microcephaly, Guillain-Barré syndrome, and eye infections. The recent outbreak has resulted in an astonishing number of microcephaly cases in fetus and infants. Consequently, numerous studies were conducted using in vitro cell and in vivo animal models. These studies showed clear links between ZIKV infections and neurological abnormalities. Diagnosis methods based on nucleic acid and serological detection facilitated rapid and accurate identification of ZIKV infections. New transmission modalities such as sexual and transplacental transmission were uncovered. Given the seriousness of ZIKV infections, WHO declared the development of safe and effective vaccines and new antiviral drugs as an urgent global health priority. Rapid work in this direction has led to the identification of several vaccine and antiviral drug candidates. Here, we review the remarkable progress made in understanding the molecular links between ZIKV infections and neurological irregularities, new diagnosis methods, potential targets for antiviral drugs, and the current state of vaccine development.
Assuntos
Surtos de Doenças , Infecções Oculares Virais/epidemiologia , Síndrome de Guillain-Barré/epidemiologia , Microcefalia/epidemiologia , Infecção por Zika virus/epidemiologia , Zika virus/patogenicidade , Aedes/virologia , Animais , Antivirais/uso terapêutico , Brasil/epidemiologia , Infecções Oculares Virais/tratamento farmacológico , Infecções Oculares Virais/etiologia , Feto , Síndrome de Guillain-Barré/tratamento farmacológico , Síndrome de Guillain-Barré/etiologia , Humanos , Lactente , Microcefalia/tratamento farmacológico , Microcefalia/etiologia , Mosquitos Vetores/virologia , Vacinas Virais/biossíntese , Zika virus/crescimento & desenvolvimento , Zika virus/imunologia , Infecção por Zika virus/complicações , Infecção por Zika virus/tratamento farmacológico , Infecção por Zika virus/transmissãoAssuntos
Febre de Chikungunya/transmissão , Vírus Chikungunya/patogenicidade , Surtos de Doenças/prevenção & controle , Descoberta de Drogas , Controle de Mosquitos/organização & administração , Vacinas Virais , Aedes/virologia , Animais , Febre de Chikungunya/epidemiologia , Febre de Chikungunya/prevenção & controle , Humanos , Insetos Vetores , Estados Unidos , Índias OcidentaisRESUMO
The Receptor for Activated C Kinase 1 (RACK1), a scaffold protein member of the tryptophan-aspartate (WD) repeat family, folds in a seven-bladed ß-propeller structure that permits the association of proteins to form active complexes. Mosquitoes of the genus Aedes sp., are vectors of virus producing important diseases such as: dengue, chikungunya and yellow fever. Based on the highly conserved gene sequence of AeaeRACK1 of the mosquito Aedes aegypti we characterized the mRNA and protein of the homologous AealRACK1 from the Ae. albopictus-derived cell line C6/36 HT. Two protein species differing in MW/pI values were observed at 35kDa/8.0 and 36kDa/6.5. The behavior of AealRACK1 was studied inducing stress with serum deprivation and the glucocorticoid dexamethasone. Both stressors induced increase of the expression of AealRACK1 mRNA and proteins. In serum-deprived cells AealRACK1 protein was located cortically near the plasma membrane in contrast to dexamethasone-treated cells where the protein formed a dotted pattern in the cytoplasm. In addition, 33 protein partners were identified by immunoprecipitation and mass spectrometry. Most of the identified proteins were ribosomal, involved in signaling pathways and stress responses. Our results suggest that AealRACK1 in C6/36 HT cells respond to stress increasing its synthesis and producing phosphorylated activated form. BIOLOGICAL SIGNIFICANCE: Insect cells adapt to numerous environmental stressors, including chemicals and invasion of pathogenic microorganisms among others, coordinating cellular and organismal responses. Individual cells sense the environment using receptors that trigger signaling pathways that regulate expression of specific effector proteins and/or cellular responses as movement or secretion. In the coordination of responses to stress, scaffold proteins are pivotal molecules that recruit other proteins forming active complexes. The Receptor for Activated C Kinase 1 (RACK1) is the best studied member of the conserved tryptophan-aspartate (WD) repeat family. RACK1 folds in a seven-bladed ß-propeller structure and it could be activated during stress, participating in different signaling pathways. The presence and activities of RACK1 in mosquitoes had not been documented before, in this work the molecule is demonstrated in an Aedes albopictus-derived cell line and its reaction to stress is observed under the effect of serum deprivation and the presence of glucocorticoid analog dexamethasone, a chemical used to cause stress in vitro.