Cameron Webb

Cameron Webb
The University of Sydney · Department of Medical Entomology

PhD

About

162
Publications
28,333
Reads
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2,445
Citations
Citations since 2017
56 Research Items
1586 Citations
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Introduction
I'm interested in the management of mosquitoes and mosquito-borne disease risk associated with coastal and freshwater rehabilitated and constructed wetlands. Also, the role of insect repellents in reducing mosquito-borne disease risk.

Publications

Publications (162)
Article
Japanese encephalitis virus (JEV) continues to cause significant numbers of human infections and fatalities despite the availability of efficacious vaccines. It is regarded as an emerging mosquito-borne pathogen with the potential of introduction into many countries. In 2022, JEV was detected in Australia on a hitherto unprecedented scale, with loc...
Article
Full-text available
Objective: To examine the sequence of environmental and entomological events prior to a substantial increase in Ross River virus (RRV) and Barmah Forest virus (BFV) notifications with a view to informing future public health response. Methods: Rainfall, tidal, mosquito and human arboviral notification data were analysed to determine the temporality...
Article
Full-text available
Citizen science mosquito surveillance has been growing in recent years due to both increasing concern about mosquito-borne disease and the increasing popularity of citizen science projects globally. Health authorities are recognising the potential importance of citizen science to expanding or enhancing traditional surveillance programs. Different p...
Technical Report
Full-text available
Following the outbreak of Japanese Encephalitis virus in Australia, an expert panel was convened to develop guidelines for mosquito management in and around piggeries.
Technical Report
Full-text available
Following the outbreak of Japanese Encephalitis virus in Australia, an expert panel was convened to develop guidelines for mosquito management in and around piggeries.
Article
Full-text available
Global concern regarding mosquito-borne disease emergence and re-emergence has driven the development of citizen science mosquito surveillance initiatives. Although these initiatives have shown great potential to assist local health authorities, ensuring outcomes are translatable to improved public health policy and practice remains challenging. He...
Article
Full-text available
The nutritional requirements of mosquitoes include both sugar (generally derived from the nectar of flowers) and blood (humans or animals). Mosquitoes express different degrees of preferences towards hosts depending on behavioral, ecological, and physiological factors. These preferences have implications for mosquito-borne disease risk. The present...
Preprint
Full-text available
The Northern Rivers region of NSW, Australia, is well documented as being impacted by nuisance-biting mosquitoes and mosquito-borne disease. Mosquitoes of greatest concern are those associated with estuarine and brackish water habitats associated with coastal wetlands and understanding the spatial variability in abundance and diversity will assist...
Article
Full-text available
Mosquito populations associated with the heavily urbanised Cooks River and Wolli Creek estuaries, Sydney, Australia, were investigated to assist in identifying potential pest and public health threats and assist local authorities in developing management strategies. Adult mosquitoes were sampled using carbon dioxide baited light traps at five locat...
Article
The terrestrial, freshwater and marine realms all provide essential ecosystem services in urban environments. However, the services provided by each realm are often considered independently, which ignores the synergies between them and risks underestimating the benefits derived collectively. Greater research collaboration across these realms, and a...
Article
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The insect growth regulator pyriproxyfen in two formulations (Sumilarv 90 CS and Sumilarv 5 GR) was evaluated in semi-field trials for the control of immature stages of Culex quinquefasciatus Say. In the first trial, the two formulations were compared with the industry standard Prolink 50 CS (50g/L s-methoprene) at the field application rate for Pr...
Poster
Full-text available
Integrating citizen science and mosquito monitoring to improve public health Mosquito-borne diseases have been increasing in several countries globally. As there is no vaccine for most of these diseases, managing mosquito populations is still the most effective way to prevent them. Mozzie Monitors is a citizen science mosquito monitoring program...
Preprint
Full-text available
The nutritional requirements of mosquitoes include both sugar (generally derived from the nectar of flowers) and blood (humans or animals). Mosquitoes express different degrees of preferences towards hosts depending on behavioral, ecological, and physiological factors. These preferences have implications for mosquito-borne disease risk. The present...
Article
The response of mosquitoes to bushfire is poorly understood. During the 2019–20 summer, many regions of Australia were impacted by devastating bushfires. An area of estuarine and brackish-water wetlands alongside the Georges River, Sydney, New South Wales, was burned in January 2020. Mosquito populations within the area were monitored as part of th...
Article
Full-text available
Exotic mosquitoes, especially container-inhabiting species such as Aedes aegypti and Aedes albopictus, pose a risk to Australia as they bring with them potentially significant pest and public health concerns. Notwithstanding the threat to public health and wellbeing, significant economic costs associated with the burden of mosquito control would fa...
Article
Insect-specific flaviviruses (ISFs) have been isolated from a range of mosquito species from different parts of the world. These viruses replicate efficiently in mosquitoes but do not appear to replicate in vertebrates. There is increasing evidence that ISFs persist in nature through vertical transmission, and that they interfere with the replicati...
Article
Full-text available
Mosquitoes and mosquito-borne disease are a normal part of the Australian summer but the 2019-2020 summer was anything but normal. Above average temperatures and below average rainfall resulted in drought across many parts of New South Wales (NSW), Australia, which then contributed to catastrophic bushfires. However, by late summer, above average r...
Article
Full-text available
Various products and insecticides are available that purport to reduce wild populations of adult mosquitoes. Recently, several manufacturers and general public comments on the internet have promoted devices that claim that ingestion of salt will significantly reduce populations of wild mosquitoes to near zero; there are no known scientific efficacy...
Article
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Changes to Australia's climate and land-use patterns could result in expanded spatial and temporal distributions of endemic mosquito vectors including Aedes and Culex species that transmit medically important arboviruses. Climate and land-use changes greatly influence the suitability of habitats for mosquitoes and their behaviors such as mating, fe...
Article
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Urban freshwater wetlands have been identified as a potential source of mosquitoes of pest and public health concern in Australia. Mosquitoes most commonly associated with these habitats include Anopheles annulipes , Culex annulirostris , Culex quinquefasciatus , Coquillettidia linealis and Mansonia uniformis . However, adaptive management of fresh...
Article
Full-text available
Global wetland loss means constructed urban wetlands are an increasingly valuable resource for conservation. However, priorities for managing urban wetlands for conservation are often seen to conflict with management to reduce potential mosquito risks, such as nuisance biting and pathogen transmission. Understanding the ecological consequences of w...
Article
Mosquito surveillance remains a cornerstone of pest and disease control operations globally but is strongly limited in scale by resources. The use of citizen science to upscale scientific data collection is commonplace, and mosquito surveillance programs have begun to make use of citizen scientists in several countries, particularly for exotic spec...
Article
Full-text available
The management of arthropods in urban environments is complex. Although there are species that threaten human health and property, there are also extensive communities of beneficial species that need to be conserved. Current management of arthropod pests in cities relies heavily on the use of synthetic chemicals, which have a range of potential env...
Article
Aedes vigilax (Skuse) is a pest and vector species associated with coastal wetlands and the abundance of this mosquito has been identified as contributing to increased risk of mosquito-borne disease outbreaks. As urban development continues to encroach on these coastal wetlands, pest and public health impacts are becoming of increasing concern and...
Article
Constructed wetlands are popular tools for managing threatened flora and fauna in urban settings, but there are concerns that these habitats may increase mosquito populations and mosquito-related public health risks. Understanding the interactions occurring between mosquitoes of public health concern and co-occurring organisms is critical to inform...
Article
Full-text available
The cat flea (Ctenocephalides felis) is the most common parasite of domestic cats and dogs worldwide. Due to the morphological ambiguity of C. felis and a lack of — particularly largescale — phylogenetic data, we do not know whether global C. felis populations are morphologically and genetically conserved, or whether human-mediated migration of dom...
Article
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Urban wetlands are increasingly being used to manage stormwater, provide valuable resources for biodiversity, and to improve public amenity and wellbeing. However, community concern regarding an increase in the abundance of mosquitoes that pose risks to public health can severely undermine support for these habitats. Our limited understanding of re...
Article
Mangrove forests in Malaysia represent ecosystems containing a variety of flora and fauna species. Mosquitoes are common in these habitats and known vectors of mosquito-borne pathogens, an understanding of the abundance and distribution of mosquitoes in mangrove forests assists the assessment of potential disease outbreak. The mangrove environments...
Article
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Urban waterbirds are considered both serious pests and inspiring wildlife. Ibis and gulls are often vilified due to their dirty appearance and disruption of outdoor activities, while ducks are affectionately fed in parks. However, all waterbirds are potential reservoirs of zoonotic pathogens. In Sydney (Australia), we documented the relative preval...
Preprint
MALDI-TOF MS specimen preparation for rapid identification of Australian mosquitoes
Preprint
MALDI-TOF MS specimen preparation for rapid identification of Australian mosquitoes
Article
Australian mosquito species significantly impact human health through nuisance biting and the transmission of endemic and exotic pathogens. Surveillance programmes designed to provide an early warning of mosquito-borne disease risk require reliable identification of mosquitoes. This study aimed to investigate the viability of Matrix-Assisted Laser...
Presentation
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An overview of the results from the NSW Arbovirus Surveillance Program is provided for the seasons 2016-2017 and 2017-2018.
Article
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We describe the successful management of Anncaliia algerae microsporidial myositis in a man with graft versus host disease after hemopoietic stem cell transplantation. We also summarize clinical presentation and management approaches and discuss the importance of research into the acquisition of this infection and strategies for prevention.
Article
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Due to conservation and rehabilitation efforts, mangrove forests represent some of the largest environmental niches in Malaysia. However, there is little information on the potential risks posed by mosquitoes that are directly and indirectly associated with mangrove forests. To study the potential health risk to humans active within and in close vi...
Article
Full-text available
Background: The current understanding of the landscape epidemiology of Ross River virus (RRV), Australia's most common arthropod-borne pathogen, is fragmented due to gaps in surveillance programs and the relatively narrow focus of the research conducted to date. This leaves public health agencies with an incomplete understanding of the spectrum of...
Article
Liao ning virus (LNV) was first isolated in 1996 from mosquitoes in China, and has been shown to replicate in selected mammalian cell lines and to cause lethal haemorrhagic disease in experimentally infected mice. The first detection of LNV in Australia was by deep sequencing of mosquito homogenates. We subsequently isolated LNV from mosquitoes of...
Article
Wyeomyia (Wyeomyia) mitchellii (Theobald) (Diptera: Culicidae) was recovered for the first time on Guam, United States of America, in 2017. Larval specimens were collected from water-filled axils of bromeliads during a larval survey carried out in a residential neighborhood of the Chalan Pago/Ordot area. Native to the New World, Wy. mitchellii has...
Article
FULL TEXT AVAILABLE AT http://rdcu.be/uOaj Three new viruses classifiable within the Totivirus and Orbivirus genera were detected from Anopheles mosquito species collected in Eastern Australia. The viruses could not be isolated in C6/36 mosquito cell cultures but were shown to replicate in their mosquito hosts by small RNA analysis. The viruses gro...
Article
Full-text available
Mangroves harbor mosquitoes capable of transmitting human pathogens; consequently, urban mangrove management must strike a balance between conservation and minimizing public health risks. Land use may play a key role in shaping the mosquito community within urban mangroves through either species spillover or altering the abundance of mosquitoes ass...
Article
Mosquitoes and mosquito-borne pathogens within urban regions may vary in response to short-term spatial and temporal changes in climate, as well as the distribution of water bodies, habitats and wildlife. Predicting where and when mosquito-borne pathogens are likely to occur is vital to safeguarding against outbreaks of human disease and developing...
Article
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Malaria has been Ethiopia's predominant communicable disease for decades. Following the catastrophic malaria outbreak in 2003–2004, the Federal Ministry of Health (FMoH) took drastic public health actions to lower the burden of malaria. The FMoH achieved significant declines in malaria mortality and incidence, and recently declared its objective to...
Article
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There are many gaps to be filled in our understanding of mosquito-borne viruses, their relationships with vectors and reservoir hosts, and the environmental drivers of seasonal activity. Stratford virus (STRV) belongs to the genus Flavivirus and has been isolated from mosquitoes and infected humans in Australia but little is known of its vector and...
Poster
Mangrove forests are one of the largest and richest environmental niches in Malaysia. However, there is lack information on the mosquito species and their potential mosquito-borne disease risk, such as dengue and Malaria, associated with these habitats. The objective of this research was to identify the species composition of mosquitoes in mangrove...
Article
Full-text available
Resistance profiling on Cimex lectularius and Cimex hemipterus in Australia has previously revealed the existence of resistance to pyrethroid insecticides and that multiple resistant mechanisms exist in field populations. To further investigate insecticide resistance in modern field populations of bed bugs, a program to collect and screen field spe...
Article
Full-text available
The fundamental approach in biological control of Aedes albopictus not only requires mass rearing of mosquitoes, the released adults must be highly competitive in field settings to undertake successful control. The fitness of adults is highly dependent on the immature development, and hence this study aims to identify the minimum feeding regime req...
Article
Full-text available
Mosquito-borne disease is an annual problem in Australia, with endemic pathogens such as Ross River virus infecting thousands of people each year. The recent emergence of Zika virus in South America and the Pacific, together with ongoing outbreaks of dengue viruses in Southeast Asia, generated great community interest in the most effective strategi...
Article
Full-text available
Mosquito-borne diseases caused by endemic pathogens such as Ross River, Barmah Forest and Murray Valley encephalitis viruses are an annual concern in New South Wales (NSW), Australia. More than a dozen mosquito species have been implicated in the transmission of these pathogens, with each mosquito occupying a specialised ecological niche that influ...
Article
Full-text available
Insecticide resistance in bed bugs (Cimex lectularius and Cimex hemipterus) has become widespread, which has necessitated the development of new IPM (Integrated Pest Management) strategies and products for the eradication of infestations. Two promising options are the diatomaceous earth and silica gel-based desiccant dusts, both of which induce deh...
Article
Full-text available
This study was conducted to better understand the effect of different sucrose concentrations on Aedes albopictus fecundity, biting behavior and survival. Laboratory strain Ae. albopictus females were raised at four different sucrose concentrations (10%, 30%, 50%, and 70%) and their fecundity, host biting on and survival rates were determined. Mosqu...
Article
1. Predation risk affects interspecific competition by decreasing foraging activity and relative competitive ability. Predation risk is determined by predators' prey choice and prey responses, both of which can be influenced by temperature. Temperature is especially important for larval prey and can result in a trade‐off between predator‐induced de...
Article
Full-text available
The Australian native mosquito Aedes (Finlaya) notoscriptus (Skuse) is closely associated with natural and artificial water holding receptacles. Eggs are laid in habitats where they are exposed to drying conditions as water levels fluctuate. Withstanding desiccation enables survival in challenging environments and increases the potential for establ...
Article
Full-text available
Thickening of the integument as a mechanism of resistance to insecticides is a well recognised phenomenon in the insect world and, in recent times, has been found in insects exhibiting pyrethroid-resistance. Resistance to pyrethroid insecticides in the common bed bug, Cimex lectularius L., is widespread and has been frequently inferred as a reason...
Article
Full-text available
Resistance to insecticides, especially the pyrethroids, in the common bed bug,Cimex lectulariusL., has been well-documented. However, the presence and relative contribution of metabolic detoxifying microsomal oxidases and hydrolytic esterases to the observed resistance has yet to be fully elucidated. This is due, in part, to the absence of a simple...
Article
Full-text available
Head lice ( Pediculus humanus capitis ) infestations are a public health concern. The insecticidal properties of the Australian native plant Kunzea ambigua (commonly known as tick bush) have been documented. In this study, we tested activity of kunzea oil (KO) against head lice through in vitro bioassays. Head lice were exposed to filter paper trea...
Book
Mosquitoes are annoying, and can be deadly, but they can also be beautiful. A Guide to Mosquitoes of Australia explores the biodiversity of this fascinating group of insects. It provides a pictorial guide to almost 100 mosquito species and includes notes on their biology, habitats and association with disease. They are found in almost every type of...
Article
Fleas (Siphonaptera) are ubiquitous blood-sucking pests of animals world-wide and are vectors of zoonotic bacteria such as Rickettsia and Bartonella. We performed Ion Torrent PGM™ amplicon sequencing for the bacterial 16S rRNA gene to compare the microbiome of the ubiquitous cat flea (Ctenocephalides f. felis) and the host-specific echidna stickfas...
Article
Full-text available
To date, insect-specific flaviviruses (ISFs) have only been isolated from mosquitoes and increasing evidence suggests that ISFs may affect the transmission of pathogenic flaviviruses. To investigate the diversity and prevalence of ISFs in Australian mosquitoes, samples from various regions were screened for flaviviruses by ELISA and RT-PCR. Thirty-...