Publications by authors named "Greg Devine"
Background: Volatile pyrethroid spatial repellents (VPSRs) can prevent mosquito-borne diseases including malaria and dengue fever, but the use of varied evaluation methods has resulted in a lack of clarity regarding their protective efficacy (PE) against contact with mosquitoes. This systematic review and meta-analysis consolidates the entomological evidence base on the PE of VPSRs against Anopheles, Aedes, and Culex mosquitoes and different test methods used.
Methods: We identified studies completed between January 2000 and September 2023 by searching through databases, conference abstracts, and personal correspondences.
Background: Chikungunya virus (CHIKV) is a mosquito-transmitted, arthritogenic alphavirus that causes sporadic outbreaks of often debilitating rheumatic disease. The recently approved CHIKV vaccine, IXCHIQ, is based on a live-attenuated CHIKV strain (VLA1553), with viraemic vaccine recipients theoretically able to transmit VLA1553 to mosquitoes with ensuing onward transmission. We thus evaluated VLA1553 transmission from artificial blood meals to Aedes albopictus mosquitoes, and onward transmission to mice.
View Article and Find Full Text PDFObjectives: The first outbreak of chikungunya virus (CHIKV) was reported in West Sepik, Papua New Guinea (PNG) in June 2012, and spread rapidly throughout PNG. CHIKV imported from PNG to Queensland has been reported occasionally, but transmission of CHIKV in PNG remains unclear due to the lack of testing capability. This study investigated the degree of CHIKV exposure among PNG military personnel (PNGMP) in 2019, 7 years after its first emergence.
View Article and Find Full Text PDFMosquito control with bednets, residual sprays or fumigation remains the most effective tool for preventing vector-borne diseases such as malaria, dengue and Zika, though there are no widely used entomological methods for directly assessing its efficacy. Mosquito age is the most informative metric for evaluating interventions that kill adult mosquitoes but there is no simple or reliable way of measuring it in the field. Near-Infrared Spectroscopy (NIRS) has been shown to be a promising, high-throughput method that can estimate the age of mosquitoes.
View Article and Find Full Text PDFArticle Synopsis
- The study investigates the RNA viromes of wild Aedes aegypti mosquitoes from Bangkok, Thailand, and Cairns, Australia, which are key vectors for dengue, Zika, and chikungunya viruses.* -
- A comparison of the two mosquito populations revealed high virome similarity and identified up to 27 insect-specific viruses, including three dominant characterized viruses: Phasi Charoen-like virus, Humaita-Tubiacanga virus, and Cell fusing agent virus.* -
- Findings indicate that the diversity of viromes, including potential viral infections and genetic alleles, may influence mosquito vector competence, suggesting the need for further research on the role of viromes in arbovirus transmission.*
Chikungunya virus transmission between Aedes albopictus and laboratory mice.
Parasit Vectors
October 2016
Background: Chikungunya virus (CHIKV) is a mosquito-borne alphavirus associated with epidemics of acute and chronic arthritic disease in humans. Aedes albopictus has emerged as an important new natural vector for CHIKV transmission; however, mouse models for studying transmission have not been developed.
Methods: Aedes albopictus mosquitoes were infected with CHIKV via membrane feeding and by using infected adult wild-type C57BL/6 mice.