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Fatal systemic morbillivirus infection in bottlenose dolphin, canary islands, Spain

Eva Sierra, Daniele Zucca, Manuel Arbelo

    Emerging Infectious Diseases
    |January 23, 2014
    PubMed

    Insights

    A bottlenose dolphin in the North Atlantic tested positive for a systemic morbillivirus infection. Genetic analysis revealed the virus is closely related to strains found in Mediterranean striped dolphins.

    Area of Science:

    • Marine veterinary medicine
    • Virology
    • Wildlife disease surveillance

    Background:

    • Morbilliviruses are known to cause severe systemic infections in marine mammals.
    • Previous morbillivirus outbreaks have been documented in cetacean populations globally.

    Observation:

    • A juvenile bottlenose dolphin stranded in the eastern North Atlantic Ocean in 2005 presented with signs of systemic illness.
    • Postmortem examination confirmed a systemic morbillivirus infection.

    Findings:

    • Sequence analysis of the morbillivirus phosphoprotein gene was performed.
    • The identified morbillivirus strain showed close genetic relatedness to dolphin morbillivirus found in the Mediterranean Sea.

    Implications:

    • This finding highlights the potential spread of morbilliviruses between different marine mammal populations and geographic regions.
    • Continued surveillance is crucial for understanding and managing morbillivirus threats to marine wildlife.
    • Genetic characterization aids in tracing virus origins and transmission pathways.
    Keywords:
    Canary IslandsSpainbottlenose dolphincetacean morbillivirusesmorbillivirusviruses

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