REPORT SICK OR
(3 or more birds)
BACKYARD POULTRY OWNERS:
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AVIAN INFLUENZA FACT
page is about influenza in
birds. Click on the links for
information about influenza in:
What is avian influenza?
Avian influenza (AI) refers to a family
of influenza (flu) viruses that commonly
There are many strain of AI viruses.
They are classified based on
proteins found on the surface of virus itself.
These are called H (hemagglutinin)
and N (neuraminidase).
Depending on the strain involved, AI
viruses can occasionally jump to humans and many
animal species, causing symptoms of flu.
Some of most important
AI viruses are those that cause severe disease in
poultry. These are referred to as
Highly Pathogenic Avian Influenza (HPAI).
How is AI transmitted to
In the wild, AI viruses can be carried
by waterfowl (ducks, geese) - These
birds usually do not have symptoms of
flu but can shed the virus in their
Domestic birds like poultry (chickens,
turkeys) become infected when they get
in contact with waterfowl feces
containing the virus.
In addition, infected domestic birds can
pass the virus to each other through
Humans may become infected with some
strains of AI through close, direct
contact with infected poultry. Human to
human transmission of AI rarely occurs.
What are symptoms of AI?
Depending on the strain
involved, infected birds
can show any of the
discharge, swollen eyes
or head, ruffled
feathers, fever, and
here to learn more
about AI in animals.
As in animals, symptoms
of AI in people vary
with the infecting
strains. Common symptoms
include: fever, cough,
here to learn more
about AI infections in
What is the
treatment for AI?
What should I do to prevent AI in animals or myself?
and infection control are key to prevent
spread of AI to animals and people. This
Isolating sick birds
from the healthy ones
between domestic birds
and wild birds
protection when handling
sick birds (e.g. gloves
and face protection)
Hand washing after
Report sick/dead poultry
here to know more about how to
protect domestic birds from AI. (USDA)
IN LOS ANGELES COUNTY
To date, HPAI in animals has
not been identified in Los Angeles County.
However, the Veterinary Public Health Program (VPH)
monitors closely the following situations:
In addition, VPH monitors cases of flu in other species
Los Angeles County Department of Public Health, Acute
Communicable Disease Control (ACDC) -
Centers for Disease Control and Prevention (CDC)
Past Outbreaks of Avian Influenza
Avian Influenza A Virus Infection in People
Avian Influenza in Birds
US Department of Agriculture (USDA) -
Last updated: June 8, 2017