African Horse Sickness - PowerPoint PPT Presentation

View by Category
About This Presentation
Title:

African Horse Sickness

Description:

African Horse sickness (AHS) is a viral disease with an extremely high mortality rate. The key to treating AHS is to learn about it, recognise early symptoms and, primarily, prevent the disease as best as possible. AHS is highly infectious but not contagious. AHS may affect horses, donkeys or mules. – PowerPoint PPT presentation

Number of Views:5
Date added: 27 October 2018
Slides: 7
Provided by: budgetpet
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: African Horse Sickness


1
African Horse Sickness
2
  • African Horse sickness (AHS) is a viral disease
    with an extremely high mortality rate.  The key
    to treating AHS is to learn about it, recognise
    early symptoms and, primarily, prevent the
    disease as best as possible.  AHS is highly
    infectious but not contagious.
  • AHS may affect horses, donkeys or mules.  The
    virus is spread by midges (Culicoides midges) so
    preventing the disease largely depends on
    controlling these midges.  The virus has 9
    serotypes which can be found in various places in
    South Africa.  AHS is prevalent in the warm,
    rainy seasons when the midges are in abundance. 
    Most horses get bitten by midges at sunrise or
    sunset, when midges are most active. 

3
What are the Symptoms?
  • AHS manifests in 3 different forms, lung form
    (dunkop), heart form (dikkop) and mixed form. 
    The mixed form is a combination of the lung and
    heart form.
  • Lung form (dunkop) symptoms are
  • Extremely high fever
  • Difficulty breathing with the mouth open and the
    head may hang down.
  • Discharge from the nose which is foamy or frothy.
  • Sudden death very high mortality rate (up to
    90).
  • Heart form (dikkop) symptoms are
  • Peri-orbital swelling (swelling around the eyes).
  • Swelling around the head.
  • Fever
  • Difficulty swallowing.
  • Lower mortality rate (- 50)
  • Death may result in 4-8 days after the fever
    shows.

4
Diagnosis
  • Your veterinarian will be able to confirm the
    disease by taking a blood sample during the fever
    episodes of the disease.  The virus will be
    isolated in a laboratory from this blood sample.
    AHS is a controlled disease which means if you
    suspect your horse has AHS you must notify your
    veterinarian immediately, who will then notify
    the state veterinarian.

5
How can I prevent the disease?
  • Vaccination
  • Vaccinations usually happen twice a year by your
    veterinarian.  They should be done before any
    outbreaks of AHS.  It is important you consult
    with your veterinarian before vaccinating.
  • Repellents
  • Stables should be safely fumigated to get rid of
    any midges.  Please ensure food and water is not
    contaminated during this process. 
  • Shade cloth also helps to keep midges out of the
    stables.

6
  • Prevent midges from breeding
  • The perfect breeding area for midges is moist
    environments, especially rich, organic soil.  Wet
    and humid environments are best for them. Horse
    dung must be removed regularly as this will
    attract midges and is a great place for them to
    breed. 
  • Stable Horses
  • This should be done when the midges are most
    active late afternoon, overnight, until about
    mid morning.
  • Fans
  • Fans provide ventilation in stables which
    reduces the horse odour, which midges may be
    attracted too.
  • Treatment
  • Treatment is purely supportive.  Given the high
    mortality rate, preventive care is crucial in
    trying to control this disease.
About PowerShow.com