Veterinary Public Health Program
313 N Figueroa St. Rm 1127
Los Angeles, CA 90012
Tel (213) 989-7060
Fax (213) 481-2375
vet@ph.lacounty.gov
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Coccidioidomycosis (Valley Fever) in Animals in Los Angeles County
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What is Coccidioidomycosis (Valley
Fever)?
It is an infection caused by a fungus called
Coccidioides. The fungus lives in dirt in
certain limited parts of the world. In Los Angeles County, the fungus is
most common in high desert areas, such as the
Antelope Valley.
The fungus grows best in sandy, alkaline soils
in areas with hot summers and warm winters. When
the dirt is disturbed by digging or excavation,
the fungal spores are released as dust into the
air.
People and animals can become infected when they
inhale the spores into the lungs. Many
people and animals develop immunity to the
fungus and do not get sick, while other can
become very ill. The fungus does strong>not
spread from person to person, or from animal to
animal.
What are the symptoms of Valley Fever in
animals?
Many types of animals can have Valley Fever, but
the most serious infections are usually seen in
dogs, cats and primates. The most common symptom
in dogs is coughing, but may also include low
appetite, limping, enlarged joints, fever and
possibly diarrhea. Cats get infected less often,
but may have skin problems (abscesses, draining
lesions), fever, low appetite, and weight loss.
How do you know if your pet has Valley
Fever?
Your veterinarian needs to perform tests to
confirm the disease. Many times a combination of
X-rays, blood tests, and sometimes biopsy are
needed to confirm infection.
What is the treatment for Valley Fever
in animals?
A veterinarian will prescribe antifungal
medications. In some cases, these medications
must be given to the animal for long periods of
time.
Are there any cases of Valley Fever in
animals in Los Angeles County?
Yes. Between 2005 and 2014, a total of 63 cases
of Valley Fever were reported in LA County
Animals. In 40% of the cases, the animal had
most likely become infected while in Southern
California.
Can humans get Valley Fever?
Yes.
Click here to read more about Valley Fever in
humans.
How can I protect my pet from Valley
Fever?
In areas where Valley Fever is more common,
avoid stirring up dirt or dust. Do not allow
your pet to dig. When you must dig in soil
yourself, use water to control dust. Keep your
pet indoors, with windows closed, during dust
storms.
Tracking Valley Fever in Animals in LA
County
Valley Fever in animals is reportable in Los
Angeles County. The reports help track trends in
this disease. In 2014, laboratories were
required to begin reporting cases, and the
reports available increased. Cases are
categorized as Confirmed, Probable, or Suspected
based on the
Coccidioidomycosis Case Definition for LA County.
Of the 63 cases reported between 2005-2014, 76%
were Confirmed, 21% were Probable, and 3% were
Suspected
Reporting Valley Fever Cases in Animals
VETERINARIANS: Report a case of
coccidioidomycosis by using
this form
 or by using the
online reporting portal.
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Last updated: December 29, 2015 |
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