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Costa Rica - 1 outbreak of Newcastle disease in birds in a rural community in Guanacaste province (OIE, April 28, 2015)

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  • Costa Rica - 1 outbreak of Newcastle disease in birds in a rural community in Guanacaste province (OIE, April 28, 2015)

    Newcastle disease,
    Costa Rica
    Information received on 28/04/2015 from Dr Bernardo J?en Hern?ndez, Director General, Servicio Nacional de Salud Animal (SENASA), Ministerio de Agricultura y Ganader?a, BARREAL DE HEREDIA, Costa Rica
    Summary
    Report type Immediate notification
    Date of start of the event 01/02/2015
    Date of confirmation of the event 26/04/2015
    Report date 28/04/2015
    Date submitted to OIE 28/04/2015
    Reason for notification Reoccurrence of a listed disease
    Date of previous occurrence 1990
    Manifestation of disease Clinical disease
    Causal agent Newcastle disease virus (Paramyxovirus)
    Nature of diagnosis Clinical, Laboratory (advanced)
    This event pertains to a defined zone within the country
    New outbreaks (1)
    Outbreak 1 Bella Vista, Santa Cecilia, La Cruz, GUANACASTE
    Date of start of the outbreak 01/02/2015
    Outbreak status Resolved (28/04/2015)
    Epidemiological unit Backyard
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 84 71 65 19 0
    Affected population A backyard population in a rural area difficult to access near the northern border of the country.
    Summary of outbreaks Total outbreaks: 1
    Total animals affected
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 84 71 65 19 0
    Outbreak statistics
    Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
    Birds 84.52% 77.38% 91.55% 100.00%
    *Removed from the susceptible population through death, destruction and/or slaughter
    Epidemiology
    Source of the outbreak(s) or origin of infection
    • Unknown or inconclusive
    Epidemiological comments On 22 April 2015, an unusual mortality was reported in birds in a rural community. On 24 April, this information was followed up and samples were sent to the laboratory on 25 April; diagnosis was confirmed on 26 April. There are only backyard birds in the area; it is an area with very bad access and communication means surrounded by forest and where animals roam freely.
    Control measures
    Measures applied
    • Stamping out
    • Quarantine
    • Movement control inside the country
    • Disinfection of infected premises/establishment(s)
    • No vaccination
    • No treatment of affected animals
    Measures to be applied
    • No other measures
    Diagnostic test results
    Laboratory name and type Species Test Test date Result
    National Veterinary Services Laboratory (National laboratory) Birds nucleotide sequencing 26/04/2015 Positive
    National Veterinary Services Laboratory (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 26/04/2015 Positive
    Future Reporting
    The event is continuing. Weekly follow-up reports will be submitted.
    .../
    "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
    -Nelson Mandela
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