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Related Experiment Video

Updated: Jun 30, 2026

A Simple Fecal Flotation Method for Diagnosing Zoonotic Nematodes Under Field and Laboratory Conditions
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Predictive Approach to Mapping Angiostrongylus cantonensis Nematode Distribution, Canary Islands, Spain.

Lucia Anettová, Jan Divíšek, Radovan Coufal

    Emerging Infectious Diseases
    |June 28, 2026
    PubMed
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    Molecular and morphological characteristics of <i>Trichuris tenuis</i> from South American Camelids bred in Europe.

    Frontiers in veterinary science·2026

    The rat lungworm (Angiostrongylus cantonensis) is now established in Tenerife, detected in snails, rats, and lizards. While no human cases are reported, its presence warrants vigilance due to potential meningitis risks.

    Area of Science:

    • Parasitology
    • Ecology
    • Public Health

    Background:

    • The invasive nematode Angiostrongylus cantonensis, a cause of human eosinophilic meningitis, has expanded beyond Southeast Asia.
    • Emerging hotspots for Angiostrongylus cantonensis include Tenerife and the Mediterranean region.
    • Gastropods, rats, and lizards are known hosts for Angiostrongylus cantonensis.

    Purpose of the Study:

    • To survey the presence and prevalence of Angiostrongylus cantonensis in wildlife on Tenerife.
    • To identify environmental factors influencing habitat suitability and parasite prevalence.
    • To compare Tenerife's environmental suitability for Angiostrongylus cantonensis with other known hotspots like Hawaii.

    Main Methods:

    • Field surveys of gastropods, rats, and lizards across Tenerife.
    Keywords:
    Angiostrongylus cantonensisCanary IslandsSpainTenerifedistribution modelingeosinophilic meningitisneuroangiostrongyliasisparasitesrat lungwormzoonoses

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  • Prevalence data collection for Angiostrongylus cantonensis in surveyed hosts.
  • Species distribution modeling to determine habitat suitability drivers.
  • Multivariate environmental similarity surface analysis for comparative environmental assessment.

    • Main Results:

    • Angiostrongylus cantonensis was detected in gastropods, rats, and lizards on Tenerife, with prevalences ranging from 2.4% to 41.6%.
    • Precipitation seasonality was the primary driver of habitat suitability, while tree cover and climatic variability influenced prevalence.
    • Suitable habitats were identified in northeastern Tenerife and western Canary Islands, with limited overlap with densely populated human areas.
    • Environmental comparison with Hawaii revealed similarities, with a novel suitable habitat identified in northeastern Tenerife.

    Conclusions:

    • Angiostrongylus cantonensis is established in Tenerife, posing a potential public health risk.
    • Environmental factors like precipitation seasonality are critical for understanding parasite distribution.
    • Continued monitoring and public health vigilance are necessary due to the established presence of the rat lungworm.