CPD Article | EQUINE
CPD
African Horse Sickness
1) What is African Horse Sickness?
a. A notifiable disease caused by African Horse Sickness Virus
(AHSV) which exclusively affects equines (horses, donkeys,
mules, zebras and their cross breeds).
b. A non-notifiable disease of equines (horses, donkeys, mules,
zebras and their cross breeds) caused by African Horse
Sickness Virus (AHSV) which can also infect other herbivores
such as sheep and goats, but rarely cause clinical signs.
c. A notifiable disease of equines (horses, donkeys, mules,
zebras and their cross breeds) caused by African Horse
Sickness Virus (AHSV) which can also infect other herbivores
such as sheep and goats, but rarely cause clinical signs.
d. A contagious notifiable disease of equines (horses, donkeys,
mules, zebras and their cross breeds) caused by African Horse
Sickness Virus (AHSV) which can also infect other herbivores
such as sheep and goats, but rarely cause clinical signs.
e. An endemic disease of UK equines (horses, donkeys, mules,
zebras and their cross breeds) which can also infect other
herbivores such as sheep and goats, but rarely cause clinical
signs.
2) Which of the following diseases may be confused with
AHS?
a.
b.
c.
d.
e.
Vesicular Stomatitis.
Equine infectious anaemia.
Rift Valley Fever.
Trypanosomiasis.
Crimean-Congo Haemorrhagic fever.
3) There are four classical clinical forms of AHS. Which of
the following clinical forms is characterised by prolonged
fever (3-6 days), depression, peripheral oedema of the head
(especially suborbital fossae), neck and ventral abdomen,
paralysis of the oesophagus and colic.
a.
b.
c.
d.
e.
Pulmonary
Cardiac
Mixed
Horse Sickness fever
Neurological
4) African Horse Sickness is associated with differences
in mortality depending on the species of equine and the
serotype/strain of the virus. Which is the correct answer?
a. Donkeys are most susceptible in European countries (70%),
followed by horses, mules and hinny’s (50% mortality).
b. Horses are most susceptible (50-90%), followed by hinnys
and mules (50% mortality). Zebras and donkeys are always
resistant to this virus.
c. Horses are most susceptible (50-90%), followed by hinnys and
mules (50% mortality). Zebras and donkeys are very resistant
in enzootic regions but can be susceptible in European and
Asian regions.
d. Horses and donkeys are most susceptible (50-90% mortality),
followed by hinnys and mules (50% mortality).
e. Horses and Zebra are most susceptible (50-90% mortality),
followed by hinnys and mules (50% mortality).
• Volume 21 Issue 4 | December 2019 •
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