Drought-Induced Amplification of Local and Regional West Nile Virus Infection Rates in New Jersey

Johnson, Brian J.; Sukhdeo, M. V. K.

doi:10.1603/me12035

Cited by 52 publications

(37 citation statements)

References 55 publications

(58 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Emerging threats from vector-borne diseases have required public health professionals to increasingly move away from of conventional conceptualizations of pathogen-human-host transmission scenarios and incorporate advanced notions of ecology, entomology and veterinary sciences to evaluate risks of disease spread. The development of methods to assess potential impacts of mosquito-borne disease [64,91] is a recurring example of potential multi-sectoral challenges brought forth by climate change. The need for integrated surveillance systems is highlighted in the scientific literature by clear research needs and information gaps which would be impossible to tackle without substantial data and knowledge sharing across disciplines and geographical boundaries.…”

Section: Resultsmentioning

confidence: 99%

A Review of National-Level Adaptation Planning with Regards to the Risks Posed by Climate Change on Infectious Diseases in 14 OECD Nations

Panic

Ford

2013

IJERPH

View full text Add to dashboard Cite

Climate change is likely to have significant implications for human health, particularly through alterations of the incidence, prevalence, and distribution of infectious diseases. In the context of these risks, governments in high income nations have begun developing strategies to reduce potential climate change impacts and increase health system resilience (i.e., adaptation). In this paper, we review and evaluate national-level adaptation planning in relation to infectious disease risks in 14 OECD countries with respect to “best practices” for adaptation identified in peer-reviewed literature. We find a number of limitations to current planning, including negligible consideration of the needs of vulnerable population groups, limited emphasis on local risks, and inadequate attention to implementation logistics, such as available funding and timelines for evaluation. The nature of planning documents varies widely between nations, four of which currently lack adaptation plans. In those countries where planning documents were available, adaptations were mainstreamed into existing public health programs, and prioritized a sectoral, rather than multidisciplinary, approach. The findings are consistent with other scholarship examining adaptation planning indicating an ad hoc and fragmented process, and support the need for enhanced attention to adaptation to infectious disease risks in public health policy at a national level.

show abstract

Section: Resultsmentioning

confidence: 99%

A Review of National-Level Adaptation Planning with Regards to the Risks Posed by Climate Change on Infectious Diseases in 14 OECD Nations

Panic

Ford

2013

IJERPH

View full text Add to dashboard Cite

show abstract

“…Decreased precipitation has been associated with increased WNV infection prevalence in horses, birds and humans [73,74,75]. Although this may be partially due to increased population density of the vector due to both increased breeding/development success and decreased predation, it appeared to be more likely due to increased activity in the mosquito population [76].…”

Section: Vectormentioning

confidence: 99%

Vector-Virus Interactions and Transmission Dynamics of West Nile Virus

Ciota

Kramer

2013

Viruses

126

100

View full text Add to dashboard Cite

West Nile virus (WNV; Flavivirus; Flaviviridae) is the cause of the most widespread arthropod-borne viral disease in the world and the largest outbreak of neuroinvasive disease ever observed. Mosquito-borne outbreaks are influenced by intrinsic (e.g., vector and viral genetics, vector and host competence, vector life-history traits) and extrinsic (e.g., temperature, rainfall, human land use) factors that affect virus activity and mosquito biology in complex ways. The concept of vectorial capacity integrates these factors to address interactions of the virus with the arthropod host, leading to a clearer understanding of their complex interrelationships, how they affect transmission of vector-borne disease, and how they impact human health. Vertebrate factors including host competence, population dynamics, and immune status also affect transmission dynamics. The complexity of these interactions are further exacerbated by the fact that not only can divergent hosts differentially alter the virus, but the virus also can affect both vertebrate and invertebrate hosts in ways that significantly alter patterns of virus transmission. This chapter concentrates on selected components of the virus-vector-vertebrate interrelationship, focusing specifically on how interactions between vector, virus, and environment shape the patterns and intensity of WNV transmission.

show abstract

“…Specifically, the substantial increase in abundance of C. tarsalis that we observed over the course of the summer was possibly a result of progressive warming of abundant wetlands at SDNWA. The sizes of mosquito populations are strongly influenced by ambient temperature, relative humidity, and precipitation, and C. tarsalis, in particular, is a highly flexible species that thrives under a variety of conditions (Curry 1979(Curry , 2004Johnson and Sukhdeo 2013). In this study, seasonal peak in numbers of C. tarsalis occurred during late July to early Aug., correlating with typical peaks in summer temperatures for the Saskatoon area, as indicated by records from Environment Canada (http://climate.…”

Section: Seasonal Variability In Disease Riskmentioning

confidence: 99%

Factors influencing mortality of Lesser Scaup (Aythya affinis) ducklings during a West Nile virus outbreak

2014

View full text Add to dashboard Cite

Temporal variation in exposure and (or) susceptibility to disease-causing agents may result in changing disease risks for offspring of seasonally reproducing organisms. Although increases in disease risk and disease-related mortality have been observed during the course of the breeding cycle in some systems, the extent to which this is a generalized ecological pattern remains uncertain. We obtained data during an outbreak of West Nile virus (WNV) associated mortality in 50 semicaptive Lesser Scaup (Aythya affinis (Eyton, 1838)) ducklings and used known-fate survival models to assess whether daily survival rate (DSR) was related to age, hatch date, immunogenic challenge, vector abundance, and risk of WNV infection. Ducklings produced late in the breeding cycle had lower survival probabilities, relative to earlier conspecifics, but the best predictor of DSR was relative risk, suggesting that reduced survival of late-hatched individuals may have been related to increasing exposure to WNV-infected vectors.Résumé : Les variations temporelles de l'exposition et de la susceptibilité à des agents pathogènes peuvent se traduire par des variations des risques de maladie pour la progéniture d'organismes à reproduction saisonnière. Si des augmentations des risques de maladie et de la mortalité associée aux maladies ont été observées au fil du cycle de reproduction dans certains systèmes, la question à savoir s'il s'agit d'un phénomène écologique généralisé ou non n'est pas résolue. Nous avons obtenu des données durant une flambée de mortalité associée au virus du Nil occidental (VNO) chez 50 canetons de petit fuligule (Aythya affinis (Eyton, 1838)) semi-captifs et utilisé des modèles de survie reposant sur le sort connu pour évaluer si le taux de survie quotidien (TSQ) était relié à l'âge, la date de l'éclosion, des problèmes immunogènes, l'abondance des vecteurs et le risque d'infection au VNO. Si les canetons produits tard durant le cycle de reproduction présentaient des probabilités de survie plus faibles que celles de leurs congénères plus précoces, le risque relatif était le meilleur prédicteur du TSQ, ce qui donne à penser que les taux de survie plus faibles des individus éclos tardivement pourraient être associés à une exposition accrue à des vecteurs infectés par le VNO. [Traduit par la Rédaction]Mots-clés : petit fuligule, Aythya affinis, Culex tarsalis, risque de maladie, mortalité des canetons, date d'éclosion, abondance des vecteurs.

show abstract

Drought-Induced Amplification of Local and Regional West Nile Virus Infection Rates in New Jersey

Cited by 52 publications

References 55 publications

A Review of National-Level Adaptation Planning with Regards to the Risks Posed by Climate Change on Infectious Diseases in 14 OECD Nations

A Review of National-Level Adaptation Planning with Regards to the Risks Posed by Climate Change on Infectious Diseases in 14 OECD Nations

Vector-Virus Interactions and Transmission Dynamics of West Nile Virus

Factors influencing mortality of Lesser Scaup (Aythya affinis) ducklings during a West Nile virus outbreak

Contact Info

Product

Resources

About