ABSTRACT
Objectives: To evaluates carbon dioxide (CO2) production from yeast/sugar mixtures and its efficiency as an attractant in BG-Sentinel traps. Methods: The rate of CO2production was optimized for different yeast/sugar mixtures. The optimized mixture was then used as bait in BG-Sentinel traps.The efficiency of this bait was then compared to octenol baited traps. Results: The yeast/sugar(5 g:280 g)in 300 mL water generated the highest volume of CO2. The CO2baited traps caught significantly more mosquitoes than octenol baited traps. Conclusions: Yeast-produced CO2can effectively replace octenol baits in BG traps. This will significantly reduce costs and allow sustainable mass-application of the CO2 baited traps in large scale surveillance programs.
ABSTRACT
Objectives To evaluates carbon dioxide (CO
ABSTRACT
The knowledge of the presence of Aedes Spp. mosquitoes is very important for the prevention and control of emerging and remerging diseases caused by Arboviruses such as: Yellow fever, Dengue, Chikungunya and Zika. While Chikungunya and Dengue are endemic to Belize, Zika is currently a threat with local transmission having been established in several Caribbean and Central American Countries. The objective of the study is to survey the presence of Ae. aegypti and Ae. albopictus in the communities of San Martin, Salvapan and Las Flores, Belmopan City. The study was conducted from March 14 to April 2, 2016 whereby adult mosquitoes were captured using BG-Sentinel® Traps and larvae/pupae collection surveys were also done. Three hundred meter zone(s) were determined within localities and 1 BG-Sentinel® trap was deployed for 3 days at 24-hour intervals both indoors and outdoors at 2 residences randomly selected in each community. Larvae/Pupae collection surveys were done at 5 private premises within the predetermined zones in each of the three communities. Captured larvae and Pupae were reared for 6 days and adults obtained were used for identification. The identification of adult Ae. aegypti and Ae. albopictus was done using a stereoscopic microscope and pictorial keys that are used for the identification of mosquitoes. The presence of Ae. aegypti was identified in all 3 communities through both adult mosquito and larvae/pupae collections. However, Ae. albopictus was present only in San Martin and Salvapan communities. The presence of Ae. aegypti and/or Ae. albopictus will determine which appropriate vector control interventions are needed considering the different characteristic breeding habitats of these mosquitoes.(AU)
Subject(s)
Humans , Male , Female , Aedes/classification , Culicidae/classification , Arboviruses/classification , Pupa/classification , Specimen Handling , Belize/epidemiology , Mosquito Control , Larva/classificationABSTRACT
INTRODUCTION: Knowledge concerning the fauna of Culicidae in the Brazilian Amazon States contributes to current understanding of the bionomics of the insects collected and makes it possible to observe changes in the fauna over time. METHODS: The Culicidae were captured with a BG-Sentinel® trap in extra-domiciliary area of two rural regions of Porto Velho in June and July of 2007 and 2008. RESULTS: A total of 10,695 Culicidae was collected, belonging to nine genera: Coquillettidia, Culex, Mansonia, Psorophora, Aedes, Aedeomyia, Anopheles, Uranotaenia and Wyeomyia. CONCLUSIONS: The presence of Mansonia (Mansonia) flaveola was recorded in the State of Rondônia for the first time.
INTRODUÇÃO: O conhecimento da fauna de culicídeos em estados da Amazônia Brasileira auxilia no conhecimento da bionomia dos insetos obtidos, além de possibilitar a observação de modificações da fauna ao decorrer do tempo. MÉTODOS: As capturas dos culicídeos foram realizadas em área extradomiciliar de duas zonas rurais de Porto Velho, durante junho e julho, nos anos de 2007 e 2008, com a armadilha BG-Sentinel®. RESULTADOs: Foram coletados 10.695 culicídeos, distribuídos em nove gêneros: Coquillettidia, Culex, Mansonia, Psorophora, Aedes, Aedeomyia, Anopheles, Uranotaenia e Wyeomyia. CONCLUSÕES: Foi registrada pela primeira vez no estado a presença de Mansonia (Mansonia) flaveola.
Subject(s)
Animals , Female , Male , Culicidae/classification , Brazil , Rural HealthABSTRACT
Three types of carbon dioxide-baited traps, i.e., the Centers for Disease Control Miniature Light Trap without light, the BioGents (BG) Sentinel Mosquito Trap (BG-Sentinel) and the Mosquito Magnet® Liberty Plus were compared with human landing collections in their efficiency in collecting Anopheles (Nyssorhynchus) aquasalis mosquitoes. Of 13,549 total mosquitoes collected, 1,019 (7.52 percent) were An. aquasalis. Large numbers of Culex spp were also collected, in particular with the (BG-Sentinel). The majority of An. aquasalis (83.8 percent) were collected by the human landing collection (HLC). None of the trap catches correlated with HLC in the number of An. aquasalis captured over time. The high efficiency of the HLC method indicates that this malaria vector was anthropophilic at this site, especially as carbon dioxide was insufficiently attractive as stand-alone bait. Traps using carbon dioxide in combination with human odorants may provide better results.