Spatial distribution of West Nile virus in humans and mosquitoes in Israel, 2000–2014

Yaniv Lustig, Zalman Kaufman, Ella Mendelson, Laor Orshan, Emilia Anis, Yael Glazer, Daniel Cohen, Tamy Shohat, Ravit Bassal

Research output: Contribution to journalArticlepeer-review

Abstract

Objectives Israel has a long history of West Nile virus (WNV) morbidity, and the rate of detection of WNV in mosquitoes has been high since 2000. The aim of this study was to integrate several WNV datasets in order to gain an insight into the geographical distribution of WNV in Israel. Methods Three choropleth maps were generated showing WNV human morbidity, WNV prevalence in mosquitoes, and the results of a nationwide serological survey, based on the division of Israel into 15 sub-districts. Results The maps show a high endemicity of WNV in Israel. In respect to the morbidity map, the population residing in the central part of the country and in Arava Region is at higher risk of developing the disease than the population of the rest of Israel. Interestingly, high prevalence rates of both WNV serology and WNV-infected mosquitoes were detected in Arava Region, but lower prevalence rates were detected in most areas of the coastal region, suggesting that other factors might also be important in the development of symptomatic WNV infections. Conclusions These results underline the high prevalence of WNV in Israel and point to specific risk areas for WNV infections across the country.

Original languageEnglish
Pages (from-to)20-26
Number of pages7
JournalInternational Journal of Infectious Diseases
Volume64
DOIs
StatePublished - Nov 2017

Keywords

  • Israel
  • Mosquitoes
  • Prevalence
  • Spatial distribution
  • WNV infection
  • West Nile virus

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