The emergence of Lyme disease in Canada

Ogden, NH; Lindsay, L. Robbin; Morshed, Muhammad; Pn, Sockett; Artsob, Harvey

doi:10.1503/cmaj.080148

Cited by 221 publications

(218 citation statements)

References 20 publications

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“…Indeed, data from Europe and North America provide evidence that tick distributions have recently shifted or expanded into higher latitudes and altitudes in parallel with rising temperatures. [26][27][28][29] Although mechanisms other than climate variability and change undoubtedly contribute to these outcomes, 30 the repeated observation of range changes correlated with temperature, in a manner consistent with known physiological constraints, argues strongly for a central role of climate in driving changes in tick distributions at broad geographic scales. [31][32][33] This recognition, and the aforementioned agricultural and public health significance of ticks, underlie a growing interest in tick distribution modeling based on future climate scenarios.…”

Section: Introductionmentioning

confidence: 99%

Modeling the Present and Future Geographic Distribution of the Lone Star Tick, Amblyomma americanum (Ixodida: Ixodidae), in the Continental United States

Springer¹,

Jarnevich²,

Barnett³

et al. 2015

The American Society of Tropical Medicine and Hygiene

114

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Abstract. The Lone star tick (Amblyomma americanum L.) is the primary vector for pathogens of significant public health importance in North America, yet relatively little is known about its current and potential future distribution. Building on a published summary of tick collection records, we used an ensemble modeling approach to predict the present-day and future distribution of climatically suitable habitat for establishment of the Lone star tick within the continental United States. Of the nine climatic predictor variables included in our five present-day models, average vapor pressure in July was by far the most important determinant of suitable habitat. The present-day ensemble model predicted an essentially contiguous distribution of suitable habitat extending to the Atlantic coast east of the 100th western meridian and south of the 40th northern parallel, but excluding a high elevation region associated with the Appalachian Mountains. Future ensemble predictions for 2061-2080 forecasted a stable western range limit, northward expansion of suitable habitat into the Upper Midwest and western Pennsylvania, and range contraction along portions of the Gulf coast and the lower Mississippi river valley. These findings are informative for raising awareness of A. americanumtransmitted pathogens in areas where the Lone Star tick has recently or may become established.

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Section: Introductionmentioning

confidence: 99%

Modeling the Present and Future Geographic Distribution of the Lone Star Tick, Amblyomma americanum (Ixodida: Ixodidae), in the Continental United States

Springer¹,

Jarnevich²,

Barnett³

et al. 2015

The American Society of Tropical Medicine and Hygiene

114

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“…• Cardiovascular/ Respiratory symptoms and diseases 12,[24][25][26][27][28][29][30] • Atopic sensitization and increased allergic symptoms 3,31) UV Radiation • Skin diseases including cancer and eye diseases [32][33][34][35] Extreme weather events • Cardiovascular/ respiratory diseases 4,12,36) • Atopic sensitization (pollen and aeroallergens) 3,27) • Vector borne diseases 4,12) • Falls, injuries & fatalities 4,12) and Exchanges during Montreal CC and OHS workshops, Nov. [24][25]2010 • Mental health disturbances 37,38) Vector-borne and zoonotic diseases • Encephalitis caused by arthropods (St. Louis, La Crosse, Eastern Equine) 4) • Hantavirus Pulmonary Syndrome 4) • West Nile Virus 4,39) • Lyme Disease 4,[40][41][42] • Brucellosis…”

Section: Discussionmentioning

confidence: 99%

Climate Change and Occupational Health and Safety in a Temperate Climate: Potential Impacts and Research Priorities in Quebec, Canada

et al. 2013

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The potential impacts of climate change (CC) on Occupational Health and Safety (OHS)have been studied a little in tropical countries, while they received no attention in northern industrialized countries with a temperate climate. This work aimed to establish an overview of the potential links between CC and OHS in those countries and to determine research priorities for Quebec, Canada. A narrative review of the scientific literature (2005-2010) was presented to a working group of international and national experts and stakeholders during a workshop held in 2010. The working group was invited to identify knowledge gaps, and a modified Delphi method helped prioritize research avenues. This process highlighted five categories of hazards that are likely to impact OHS in northern industrialized countries: heat waves/increased temperatures, air pollutants, UV radiation, extreme weather events, vector-borne/zoonotic diseases. These hazards will affect working activities related to natural resources (i.e. agriculture, fishing and forestry) and may influence the socioeconomic context (built environment and green industries), thus indirectly modifying OHS. From this consensus approach, three categories of research were identified: 1) Knowledge acquisition on hazards, target populations and methods of adaptation; 2) Surveillance of diseases/ accidents/occupational hazards; and 3) Development of new occupational adaptation strategies.

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“…In recent years, northward invasive spread of the tick vectors from the United States endemic foci to nonendemic Canadian habitats is a public health concern [8,23]. Migratory songbirds play an integral role in the wide dispersal of B. burgdorferi-infected ticks, especially during northward spring migration [28].…”

Section: ) Admits a Positive ω-Periodic Solution And There Exists A mentioning

confidence: 99%

Dynamics of a Time-Delayed Lyme Disease Model with Seasonality

Wang¹,

Zhao²

2017

SIAM J. Appl. Dyn. Syst.

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Abstract. In this paper, we propose a time-delayed Lyme disease model incorporating the climate factors. We obtain the existence of a disease-free periodic solution under some additional conditions. Then we introduce the basic reproduction ratio R0 and show that under the same set of conditions, R0 serves as a threshold parameter in determining the global dynamics of the model; that is, the disease-free periodic solution is globally attractive if R0 < 1; the system is uniformly persistent and admits a positive periodic solution if R0 > 1. Numerically, we study the Lyme disease transmission in Long Point, Ontario, Canada. Our simulation results indicate that Lyme disease is endemic in this region if no further intervention is taken. We find that Lyme disease will die out in this area if we decrease the recruitment rate of larvae, which implies that we can control the disease by preventing tick eggs from hatching into larvae.

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The emergence of Lyme disease in Canada

Cited by 221 publications

References 20 publications

Modeling the Present and Future Geographic Distribution of the Lone Star Tick, Amblyomma americanum (Ixodida: Ixodidae), in the Continental United States

Modeling the Present and Future Geographic Distribution of the Lone Star Tick, Amblyomma americanum (Ixodida: Ixodidae), in the Continental United States

Climate Change and Occupational Health and Safety in a Temperate Climate: Potential Impacts and Research Priorities in Quebec, Canada

Dynamics of a Time-Delayed Lyme Disease Model with Seasonality

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