Geographic partitioning of dengue virus transmission risk in Florida

Stephenson, Caroline J.; Coatsworth, Heather; Waits, Christy M.; Nazario-Maldonado, Nicole M.; Mathias, Derrick; Dinglasan, Rhoel R.; Lednicky, John A.

doi:10.1101/2021.09.24.21264065

Cited by 4 publications

(1 citation statement)

References 63 publications

(63 reference statements)

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“…Aedes albopictus is also competent for these same arboviruses, but based on studies utilizing mosquito populations from Africa, Europe, and the United States (Connecticut and New York), it has a greater vector competence for CHIKV than for DENV, ZIKV, or YFV based on (65-68). Both mosquito species can vary in their vector competence for different serotypes or strains of viruses (69)(70)(71)(72)(73), which might complicate the risk of disease transmission if multiple competent mosquito species and multiple virus lineages are circulating within a region. Limited vector competence data are available for the Pacific region.…”

Section: Vector Competence Of Aedes Aegypti and Aedes Albopictusmentioning

confidence: 99%

Arboviral disease outbreaks, Aedes mosquitoes, and vector control efforts in the Pacific

et al. 2023

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Recurring outbreaks of mosquito-borne diseases, like dengue, in the Pacific region represent a major biosecurity risk to neighboring continents through potential introductions of disease-causing pathogens. Aedes mosquitoes, highly prevalent in this region, are extremely invasive and the predominant vectors of multiple viruses including causing dengue, chikungunya, and Zika. Due to the absence of vaccines for most of these diseases, Aedes control remains a high priority for public health. Currently, international organizations put their efforts into improving mosquito surveillance programs in the Pacific region. Also, a novel biocontrol method using Wolbachia has been tried in the Pacific region to control Aedes mosquito populations. A comprehensive understanding of mosquito biology is needed to assess the risk that mosquitoes might be introduced to neighboring islands in the region and how this might impact arboviral virus transmission. As such, we present a comprehensive review of arboviral disease outbreak records as well as Aedes mosquito biology research findings relevant to the Pacific region collected from both non-scientific and scientific sources.

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Section: Vector Competence Of Aedes Aegypti and Aedes Albopictusmentioning

confidence: 99%

Arboviral disease outbreaks, Aedes mosquitoes, and vector control efforts in the Pacific

et al. 2023

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A molecular surveillance-guided vector control response to concurrent dengue and West Nile virus outbreaks in a COVID-19 hotspot of Florida

Coatsworth¹,

Lippi²,

Vasquez

et al. 2021

Preprint

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Simultaneous dengue virus (DENV) and West Nile virus (WNV) outbreaks in Florida, USA, in 2020 resulted in 71 dengue virus serotype 1 and 86 WNV human cases. Our outbreak response leveraged a molecular diagnostic screen of mosquito populations for DENV and WNV in Miami-Dade County to quickly employ targeted mosquito abatement efforts. We detected DENV serotypes 2 and 4 in mosquito pools, highlighting the silent circulation of diverse dengue serotypes in mosquitoes. Additionally, we found WNV-positive mosquito pools in areas with no historical reports of WNV transmission. These findings demonstrate the importance of proactive, strategic arbovirus surveillance in mosquito populations to prevent and control outbreaks, particularly when other illnesses (e.g., COVID-19), which present with similar symptoms are circulating concurrently. Growing evidence for substantial infection prevalence of dengue in competent mosquito vectors in the absence of local index cases suggests a higher level of dengue endemicity in Florida than previously thought.

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Assessing the Impact of Insecticide Resistance on Vector Competence: A Review

Juache-Villagrana

Pando-Robles

Garcia-Luna

et al. 2022

Insects

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The primary strategy to avoid adverse impacts from insect-mediated pathogen transmission is the chemical control of vector populations through insecticides; its continued use has led to insecticide resistance and unknown consequences on vector competence. This review aims to systematically analyze and synthesize the research on the influence of insecticide resistance (IR) on vector competence (VC). Thirty studies met the inclusion criteria. Twenty studies, conducted either in laboratory or field settings, described the influence of phenotypic insecticide resistance and mechanisms on VC in vectors of human pathogens. Seven studies showed the effect of exposure to insecticides on VC in vectors of human pathogens. Three studies reported the influence of phenotypic resistance and mechanisms on VC in crop pests. The evidence shows that IR could enhance, impair, or have no direct effect on VC in either field or laboratory-designed studies. Similar positive and negative trends are found in pest vectors in crops and studies of insecticide exposure and VC. Even though there is evidence that exposure to insecticides and IR can enhance VC, thus increasing the risk of pathogen transmission, more investigations are needed to confirm the observed patterns and what implications these factors could have in vector control programs.

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Geographic partitioning of dengue virus transmission risk in Florida

Cited by 4 publications

References 63 publications

Arboviral disease outbreaks, Aedes mosquitoes, and vector control efforts in the Pacific

Arboviral disease outbreaks, Aedes mosquitoes, and vector control efforts in the Pacific

A molecular surveillance-guided vector control response to concurrent dengue and West Nile virus outbreaks in a COVID-19 hotspot of Florida

Assessing the Impact of Insecticide Resistance on Vector Competence: A Review

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