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Shift of the Tick Ixodes ricinus and Tick-Borne Encephalitis to Higher Altitudes in Central Europe

  • M. DanielEmail author
  • V. Danielová
  • B. Kříž
  • A. Jirsa
  • J. Nožička
Brief Report

In the last decade a significant increase in the number of cases of human tick-borne encephalitis (TBE) has been registered in the Czech Republic [1]. Roughly, this increase could be characterized as twofold for the 1993–2001 period compared with the 1984–1992 period (5,240 vs. 2,441 cases). A similar increase in the incidence of human TBE has been observed in some other European countries during the 1990s, as reported on the website http://www.tbe-info.com/epidemiology/index.html.

The increase in the incidence of TBE in the Czech Republic has been manifested in three ways: (i) a higher number of cases in areas well known for TBE in humans [1]; (ii) a re-emergence of TBE in areas where it had previously occurred but had not or only sporadically been observed since the 1970s [2], or (iii) the emergence of TBE in places where it had not been known to occur previously.

TBE is notoriously dependent on the presence of the major vector of the virus, the Ixodes ricinustick. In Central...

Keywords

Czech Republic High Altitude Small Mammal Developmental Cycle Ixodes Ricinus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    Danielová V, Beneš Č (1997) Recent situation in tick-borne encephalitis in the Czech Republic. In: Süss J, Kahl O (eds) Tick-borne encephalitis and Lyme borreliosis. Pabst, Lengerich, pp 47–56Google Scholar
  2. 2.
    Danielová V (2002) Natural foci of tick-borne encephalitis and prerequisites for their existence. Int J Med Microbiol 291 (Suppl 33):183–186PubMedGoogle Scholar
  3. 3.
    Černý V, Rosický B, Ašmera J et al. (1965) Results of investigations of phenology of the common tick Ixodes ricinus (L.) in the Czech lands in the years 1960–1962. Čs Parazitol 12:125–131 (in Czech)Google Scholar
  4. 4.
    Daniel M, Černý V, Albrecht V, Honzáková E (1988) The microclimate at different altitudes of the Krkonoše Mountains and its effect on the existence of the tick Ixodes ricinus (L.). Opera Corcontica 25:76–110 (in Czech)Google Scholar
  5. 5.
    Daniel M (1993) Influence of the microclimate on the vertical distribution of the tick Ixodes ricinus (L.) in Central Europe. Acarologia 34:105–113Google Scholar
  6. 6.
    Mejlon H (2000) Host-seeking activity of Ixodes ricinus in relation to the epidemiology of Lyme borreliosis in Sweden. Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology. Acta Univ Upsaliensis 577Google Scholar
  7. 7.
    Lindgren E, Tälleklint L, Polfeldt T (2000) Impact of climatic change on the northern latitude limit and population density of the disease-transmitting European tick, Ixodes ricinus. Environ Health Perspect 108:119–123PubMedGoogle Scholar

Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • M. Daniel
    • 1
    Email author
  • V. Danielová
    • 1
  • B. Kříž
    • 1
  • A. Jirsa
    • 2
  • J. Nožička
    • 3
  1. 1.National Institute of Public HealthPrague 10Czech Republic
  2. 2.Administration of Šumava National ParkVimperkCzech Republic
  3. 3.District Public Health CentrePrachaticeCzech Republic

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