Cited by 102Vector-borne infectious diseasesClimate Change and Health ImpactsVector-Borne Animal Diseases

Impact of climate change in the epidemiology of vector-borne diseases in domestic carnivores

Open access
Beugnet, F., Chalvet-Monfray, K.·2013·Comparative Immunology, Microbiology and Infectious Diseases

Abstract

Vector-borne diseases are medically important in humans and animals but were long considered tropical and known to first affect production animals. This is no longer true and we can see today that they are common in domestic animals and that they are also present in temperate countries, especially in Europe. In recent years, an increase in the diagnosis of vector borne diseases among humans and animals has been observed, which may partly due to the development of diagnostic tools. Their study requires exchanges and collaborations between the many actors involved, especially since the epidemiology seems to be constantly evolving. The veterinary practitioner is the first one to notice the emergence of cases and to implement prevention measures. He also acts as a sentinel to alert epidemiologists. Many factors can explain the epidemiological changes, i.e. all human factors, such as the increase in commercial transportation, but also owners traveling with their pet during the holidays, the development of "outdoor" activities, the increase of individual housings with gardens; to these human factors must be added the ignorance of the risks, linked to animals in general and to wildlife in particular; then the environmental changes: forest fragmentation, establishment of parks; the increase of wild mammal populations (deer, carnivores, rodents, etc.); finally, climate changes. Climate change is a reality which may explain the increase of density of arthropod vectors, but also of their hosts, changes in periods of activity and variations in geographical distribution. The authors show the proof of the climate modifications and then explain how it has an impact in Europe on ticks, mosquitoes, sandflies and even fleas. They conclude on the practical consequences for veterinary practitioners, especially with the diagnosis of parasitic diseases or diseases in areas where they usually do not occur. However, not any epidemiological modification should be linked to climate change, since many other factors are involved and often even overriding.

AI snapshot

Written from the paper’s full text.

TL;DR

This review argues that climate change is a real driver of changing vector-borne disease epidemiology in Europe, affecting ticks, mosquitoes, sandflies, and fleas of domestic carnivores. It concludes that climate change should not be invoked for every epidemiological change because other human and environmental factors are often overriding.

Key findings

  • Global warming accelerated over the last hundred years, with an average gain of 0.74°C in 100 years; effects are not uniform and include shorter, less severe winters in Western and Northern Europe.
  • For ticks, the climatic zone favorable for *Rhipicephalus sanguineus* reproduction expanded by 669% since the 1960s in Europe, and the species can now survive/develop in Southwest France up to Nantes and Southeast France up to Lyon; *Dermacentor reticulatus* is present in 2/3 of French territory and in Slovakia gained 200 km north since the 1970s and 300 m in altitude.
  • For *Ixodes ricinus*, Swiss studies showed altitudinal limits increasing from 620 to 1070 m in some mountain ranges, and Lindgren found in Sweden some areas had 40 fewer days below −12°C and 20 more days above −7°C in winter.
  • For mosquitoes and sandflies, *Dirofilaria immitis* development requires temperatures above 14°C and 130 heartworm development units; using 5475 weather stations and 19 million temperature values over 15 years, heartworm disease can now be maintained beyond the Mediterranean, while *Aedes albopictus* is present in about 1/3 of southern French territory up to Lyon. Flea impacts are difficult to assess, though year-round conditions of >25°C and >85% RH in Florida and Queensland may explain continued heavy cat flea infestations.

Methods

  • Review/synthesis of published literature, meteorological models, field studies, and ECDC distribution maps; no primary sample or new data collection is described.
  • Main analysis is a qualitative synthesis of climate-change impacts on ticks, mosquitoes, sandflies, and fleas, with cited quantitative examples from models and field studies.
  • The paper draws on studies including a meteorological model applied to Europe since 1960, field studies on tick activity and distribution, and a heartworm transmission analysis using 5475 weather stations and 19 million temperature values.

Limitations

  • Stated: the authors caution that not every epidemiological modification should be linked to climate change, since many other factors are involved and often overriding, and climate changes are currently still limited with co-existing human-induced factors.
  • Stated: for sandflies, it is difficult to distinguish an effect of climate over human actions; for fleas, the impact of climate change is very difficult to assess because the life cycle can occur throughout the year, including indoors.
  • Evident: as a review, no systematic search strategy, inclusion criteria, or quantitative meta-analysis is reported; conclusions rely on cited models and field studies.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1016/j.cimid.2013.07.003

Cites

28 of 28 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

0 of 29 cited sources checked · 0 supported · 0 flagged

  • Premisecitation

    Introduced Siberian chipmunks contribute to the maintenance or increasing risk for humans of Lyme disease in the Melun-Sénart forest near Paris.

    “A recent study thus shows their role in the maintenance, or even in the increasing risk for humans, of Lyme disease in the Melun-Sénart forest in the suburbs of Paris [8].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
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  • Premisecitation

    Rhipicephalus sanguineus, endemic in Mediterranean regions, can now survive and develop in Southwest France up to Nantes and in Southeast France up to Lyon.

    “The use of a meteorological model [13] and biological data regarding the brown dog tick, Rhipicephalus sanguineus, applied to Europe since 1960, clearly indicates that this tick species, endemic in Mediterranean regions, can now survive and develop in the Southwest of France up to Nantes and in the Southeast of France up to Lyon [14] (Fig. 2).”
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  • Premisecitation

    The impact of climate change in Europe is most pronounced among ticks and probably their hosts.

    “The impact of climate change in Europe is most pronounced among ticks and probably their hosts [12].”
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    • cites [12]

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  • Interpretationreasoning

    Shorter winters have a direct impact on the ecology of ticks in continental Europe.

    “These studies conducted in continental Europe have shown that shorter winters have a direct impact on the ecology of ticks.”
    Quote in the paperSubstantial claim
  • Interpretationreasoning

    Changes in activity of the three main tick vectors in Europe are associated with an increase in activity and thus in the risk of transmitting pathogenic agents.

    “Thus, by observing the activity of the three main tick vectors encountered in Europe over relatively short periods of time, changes are noted.They are all associated with an increase in activity and thus in the risk of transmitting pathogenic agents.”
    Quote in the paperSubstantial claim
  • May combine two claims. 16
  • Classified as probably not a substantial claim. 8
  • May combine two claims.

    Premisecitation

    Vector-borne diseases are medically important in humans and animals, were long considered tropical and to first affect production animals, but are now common in domestic animals and present in temperate countries, especially Europe.

    “Vector-borne diseases are medically important in humans and animals but were long considered tropical and known to first affect production animals.This is no longer true and we can see today that they are common in domestic animals and that they are also present in temperate countries, especially in Europe.”
    • Also stated in: § 1. Introduction · plain
      “They are medically important in humans and animals but were long considered tropical and known to first affect production animals.This is no longer true and we can see today that they are common in domestic animals and that they are also present in temperate countries, especially in Europe [1].”
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  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Most vector-borne diseases, including bacterial and viral, are zoonotic.

    “Their interest and importance are increased by the fact that most vector-borne diseases, including bacterial and viral, are zoonotic diseases [2].”
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  • May combine two claims.

    Premisecitation

    Global warming has accelerated over the last hundred years with an average gain of 0.74°C in 100 years.

    “Global warming has accelerated over the last hundred years (Fig. 1) with an average gain of 0.74 • C in 100 years [11].”
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    • cites [11] source

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  • Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

    Interpretationnone given

    The development of diagnostic tools and easier access to them may play a role in the increased diagnosis of vector-borne diseases.

    “The development of the diagnostic tools and the easiness to have access to them may also play a role in the increased diagnosed of vector borne diseases.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationnone given

    Climate change may explain the increase of density of arthropod vectors, but also of their hosts, changes in periods of activity and variations in geographical distribution.

    “Climate change is a reality which may explain the increase of density of arthropod vectors, but also of their hosts, changes in periods of activity and variations in geographical distribution.”
    • Also stated in: § 1. Introduction · hedged
      “Climate change may explain the increase of density of arthropod vectors, but also of their hosts, changes in periods of activity and variations in geographical distribution.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    In recent years, an increase in the diagnosis of rickettsial diseases among humans and animals has been observed in the United States and Europe.

    “Especially in recent years, an increase in the diagnosis of rickettsial diseases among humans and animals has been observed in the Unites States and in Europe [3,4].”
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  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    Many factors help explain epidemiological changes of vector-borne diseases, including human factors, environmental changes, increase of wild mammal populations, and climate changes.

    “Many factors help to explain the epidemiological changes, they were summarized in 2005 by Harrus and Baneth [7]:”
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  • May combine two claims.

    Interpretationnone given

    Climate changes can have a direct impact on the survival and development of arthropod vectors, which is well demonstrated among ticks but also in some mosquitoes.

    “These changes can have a direct impact on the survival and development of arthropod vectors, which today is well demonstrated among ticks but also in some mosquitoes.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    The veterinary practitioner is the first to notice the emergence of cases and to implement prevention measures, and acts as a sentinel to alert epidemiologists.

    “The veterinary practitioner is the first one to notice the emergence of cases and to implement prevention measures.He also acts as a sentinel to alert epidemiologists [6].”
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  • Probably not a substantial claim: may not pass S2 (checkable), S3 (load-bearing).

    Premisecitation

    The epidemiology of vector-borne diseases seems to be constantly evolving.

    “especially since the epidemiology of vector-borne diseases seems to be constantly evolving [5].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
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  • May combine two claims.

    Premisecitation

    Climate changes are no longer being debated; only the mechanisms responsible for them are a matter of controversy.

    “Climate changes are no longer being debated, only the mechanisms responsible for them are a matter of controversy [9,10].”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [9]

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  • May combine two claims.

    Premisecitation

    In Slovakia, the limited area of presence of Dermacentor reticulatus gained 200 km north since the 1970s and 300 m in altitude.

    “In Slovakia, field studies showed that its limited area of presence had gained 200 km north since the 1970s, as well as 300 m in altitude [19].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
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  • May combine two claims.

    Premisenone given

    Aedes albopictus is a competent host for Dirofilaria immitis, with rapid development to infective L3, and is a more aggressive and diurnal vector than autochthonous Culex mosquitoes.

    “This mosquito is a competent host for D. immitis, with a rapid development to infective L3.However, it is also a more aggressive and diurnal vector than our autochthonous mosquitoes (Culex spp.).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationreasoning

    The presence of Aedes albopictus may accelerate the geographical spread of heartworm disease, which is already the case in Italy, and could rapidly change the epidemiology of this parasitic disease in the South of France where it is only sporadic at the moment.

    “Its presence may accelerate the geographical spread of heartworm disease, which is already the case in Italy, and, thus, could rapidly change the epidemiology of this parasitic disease in the South of France where it is only sporadic at the moment.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    The presence and density of Ixodes ricinus are related to plant cover and to the density of its hosts (micromammals for larvae and nymphs, large mammals for adult ticks).

    “Regarding Ixodes ricinus, the forest tick, the most common among hard ticks in Europe, its presence and density are obviously related to the plant cover, but also to the density of its hosts: micromammals for larvae and nymphs and large mammals (deer, wild boar, foxes and even bovine and dogs) for adult ticks [20].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
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  • May combine two claims.

    Premisecitation

    Dermacentor reticulatus is present in two-thirds of the French territory and is spreading to the East, favoring milder winters.

    “Dermacentor reticulatus, the tick vector of canine babesiosis caused by Babesia canis, is present in 2/3 of the French territory [15].It is clearly spreading to the East, favoring milder winters (Fig. 3).”
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  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    Climate changes resulting in humidity and optimal temperatures (temperature >25°C; humidity >85% RH) throughout the year were reported in Florida and Queensland, and some authors suggested this may explain continued heavy infestations of the cat flea observed by owners and veterinarians in recent years.

    “Climate changes resulting in humidity and optimal temperatures (temperature >25 • C; humidity >85% RH) throughout the year were reported in Florida (USA) and Queensland (Australia) and some authors suggested that this may explain the continued heavy infestations of the cat flea (Ctenocephalides felis), observed by owners and veterinarians these past few years [30].”
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  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Interpretationreasoning

    Vector-borne diseases affect all production and companion animals or wildlife, and possibly humans, and the factors that preside over their emergence or epidemiological modifications are often numerous.

    “It should therefore be kept in mind that vector-borne diseases affect all production and companion animals or wildlife, and possibly humans, and that the factors that preside over their emergence or over the epidemiological modifications are often numerous.”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim. May combine two claims.

    Interpretationreasoning

    Veterinary practice may be more and more concerned with the diagnosis of parasitic diseases or diseases in areas where they usually do not occur, or with more frequent diagnosis.

    “The consequences on human and animal health have been extensively researched but, from now on, veterinary practice may be more and more concerned, especially with the diagnosis of parasitic diseases or diseases in areas where they usually do not occur, or with more frequent diagnosis.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisereasoning

    Climate change was not the cause of the epizootic spread of ovine catarrhal fever or Schmallenberg disease; their vectors are indigenous Culicoides midges competent for exotic pathogenic agents newly introduced through human activities.

    “And yet, climate change was not the cause in both of these examples of emerging vector-borne diseases.The vectors are indigenous Culicoides midges, competent for exotic pathogenic agents newly introduced through human activities.”
    Quote in the paperSubstantial claim
20 of 20
  • The authors state this as an assumption.

    The heartworm transmission model assumes a requirement of 130 heartworm development units (HDUs) for larvae to reach infectivity and a maximum life expectancy of 30 days for a vector mosquito.

    “The seasonal HW transmission model originally formulated by Slocombe et al. (1989) in Canada and reevaluated by Lok and Knight (1998) in the United States assumes a requirement of 130 HDUs for larvae to reach infectivity and a maximum life expectancy of 30 days for a vector mosquito (in [24]).”
  • The paper relies on this without support.

    The risk of transmission of pathogenic agents by mosquitoes is linked to vector competence, meteorological conditions enabling the pathogen's extrinsic cycle during vector activity and vectors being active and abundant, and the presence of the pathogen and at least one reservoir.

    “The risk of transmission of pathogenic agents by mosquitoes is not linked to their mere presence but to: 1. Vector competence (ability to complete the cycle of the pathogenic agent within the vector, followed by transmission); 2. Meteorological conditions enabling: a.The pathogen to complete its extrinsic cycle during the vector's period of activity; b.The vectors to be active and abundant enough”
2 of 2

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Climate is a substantial factor for the survival and spread of arthropod vectors and subsequently for the distribution of CVBDs.

    “Climate is a substantial factor considering the survival and spread of arthropod vectors and subsequently the distribution of CVBDs [9].”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

Each contradiction between two passages listed here was confirmed by an independent check.

  • Figure 4 is described as two different subjects

    Minor

    The text points to Figure 4 for European temperature changes used in the heartworm analysis, but the Figure 4 caption identifies it as a map of Ixodes ricinus distribution.

  • Figure 1 source details match reference 8, not cited reference 9

    Minor

    Figure 1 cites reference 9 while giving PLoS ONE volume, issue and article details that appear under reference 8. Reference 9 is a different publication.

  • ECDC map source is cited as an unrelated reference

    Minor

    The map caption attributes its source to the European Center for Disease Control and cites reference 28, but reference 28 is a chapter by Ready on canine leishmaniosis.

3 of 3

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Greer, 2008, Climate change and infectious diseases in North America: the road ahead, Canadian Medical Association Journal, 178, 715

Cited by

Sorted by citations

Authors
Beugnet, F., & Chalvet-Monfray, K.
Corresponding author
Beugnet, F.
Venue
Comparative Immunology, Microbiology and Infectious Diseases
Publisher
Elsevier BV
Published
2013-12
Volume
36
Issue
6
Pages
559-566
ISSN
0147-9571 (ISSN-L)
OpenAlex
W2038395162
Cited by
102
References
28
Citations by year
2026: 6 · 2025: 8 · 2024: 4 · 2023: 5 · 2022: 3 · 2021: 13 · 2020: 19 · 2019: 6 · 2018: 8 · 2017: 7 · 2016: 5 · 2015: 12 · 2014: 5
FWCI
0.91
Type
journal article
Language
en
Open access
Locations
  • Comparative Immunology Microbiology and Infectious Diseases (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Parasitology › Vector-borne infectious diseases
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Climate Change and Health Impacts
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Vector-Borne Animal Diseases
Keywords
climate change, vector-borne diseases, domestic carnivores, ticks, mosquitoes, sand flies, fleas, arthropod vectors, wildlife reservoirs, domestic animals, veterinary practice, disease surveillance, environmental change, Europe
MeSH terms
Animals, Animal Diseases, Animals, Domestic, Carnivora, Communicable Diseases, Disease Vectors, Europe, Siphonaptera, Humans, Culicidae, Psychodidae, Ticks, Climate Change

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