Foot-and-Mouth Disease Information:
DEFRA, United Kingdom
Office
Internationale des Epizooties FMD
Institute
for Animal Health FMD homepage
R.K. Booth / Esh Winning
FMD information
The
Pig Site information on FMD in swine
USDA
APHIS information on FMD and other vesicular diseases
Consultant Foot-and-Mouth Disease:
General
![[Tongue of infected cow 1 day after intradermahingual inoculation.]](images/fmdtong.jpg)
Tongue of infected cow 1 day after intradermahingual inoculation.
The raised, round area in the center of the large, white, blanched
area is the site of inoculation. The large, white blanched area
is a vesicle. If this area is pressed, the upper layers of epithelium
will move because they are detached from the deeper layers.
This white, blanched tissue can be easily removed using forceps
and a scissors and is an excellent specimen for confirming a
diagnosis.
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![[Cow Drooling With FMD]](images/fmd_cow.jpg)
Classical FMD causes profuse drooling of frothy material,
often mixed with blood and pieces of tissue teeming with
virus. This presentation is consistent with oral and foot
lesions (erosions, hemorrhages, ataxia, etc.) Control measures
include quarantine, slaughter and compensation, and vaccination.
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![[FMD Virus]](images/fmdvirus.jpg)
There are seven serotypes of FMDv: A, 0, C, Asia 1, and Southern
African Territories (SAT) 1, 2 and 3. Within these serotypes,
more than 60 subtypes have been described, and new subtypes
occasionally arise spontaneously. At any given time, however,
there are only a few subtypes causing disease throughout areas
where FMD is endemic. The importance of subtypes is that an
FMD vaccine may have to be tailored to the subtype present
in the area in which the vaccine is to be used.
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