Also
called Hoof and Mouth disease, it's a highly infectious viral
disease of swine, cattle and other cloven-hoofed animals.
It does not cause illness in people, but it's one of the most
contagious animal diseases. It spreads very quickly if it
isn't controlled and can be devastating to agriculture. It
has not been reported in the United States since 1929 and
was eradicated in Canada in 1952. Outbreaks of Foot &
Mouth over the last century have primarily been in South America
and Europe. It has recently erupted in England and several
other European countries, as well as in Argentina.
Some
confusion arises because there is a disease in children called
Hand, Foot & Mouth disease. The Hand, Foot & Mouth
disease in children is caused by a completely different virus
from a different family of viruses not at all related to Foot
and Mouth disease.
Symptoms
in cattle and pigs with foot-and-mouth disease are a sudden
fever, after which blisters appear around the hooves, in the
mouth and nose and on the udders of females. Most of the sick
animals salivate excessively and some of them are unable to
stand because their hooves are painful and tender. Mature
animals usually recover, but foot-and-mouth disease can be
fatal for young animals. Despite the fact that mature animals
usually recover, they've lost weight, milk production will
be down, pregnant animals often abort and they can carry the
virus for up to 2 years.
The
disease is spread by the discharge from the blisters and by
the saliva of infected animals. The virus is known to live
on clothes, shoes, animals, farm equipment and even on the
wind. Animals that don't get sick from the virus, like dogs,
horses and humans can contaminate livestock facilities and
equipment and susceptible animals.
To
prevent the disease from re-surfacing in the United States,
the United States Department of Agriculture (USDA) bans the
import of animals and animal products from areas know to have
foot-and-mouth. They also strictly monitor all ports of entry
into the United States. Passengers that have traveled to infected
areas are required to disinfect their shoes. Luggage and cargo
from those areas is also inspected for animal products that
could spread the disease.
Additional
Resources:
The United
States Department of Agriculture, Plant and Animal Health
Inspection Service
A
Mayo Clinic "Beyond the Headlines" article entitled
"Clarifying foot-and-mouth confusion "