Infectious disease questions – past HSC

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  • #4308 Reply
    Joshua Mills

    2012 HSC Biology exam question

    During a major international horse event in Australia, a group of horses, including
    some from overseas, is discovered to be infected by a deadly virus. This virus is only
    found in Australia.

    Give reasons for strategies that could be carried out to control this disease outbreak [4 marks]

    #4311 Reply
    daniel r

    – disinfection the places where the horses have been so that if the virus can live on surfaces it is killed
    – quarantine the horse which has travelled overseas as well as the horses which are still in Australia, to control the spread of the virus between horses
    – put in place strict international border checks to ensure that the virus does not spread internationally
    – start the production of possible vaccines in order to control the spread of the virus

    #4312 Reply
    Joshua Mills

    Could have also included:
    Vets to wash body, clothes and equipment to stop the spread of pathogens
    Wait for incubation period to have elapsed before releasing horses from quarantine


    Already a 4 mark response

    #4317 Reply

    – isolation of horses, this would be useful as it minimizes the chance of the disease being transferred between horses (directly or indirectly). it also allows for infected horses to be treated without risking others.

    – Stop horses from leaving australia, this would stop the disease from becoming an pandemic as no infected horses could leave. this also allows epidemiologists time to conduct studies to determine how best to treat the disease.


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