BC HealthFile #07, October 2007
Rabies
What is rabies?
Rabies is a very serious and life-threatening disease caused by the rabies
virus, which infects the brain and nervous system.
Any mammal can carry the rabies virus. Currently, in B.C. only bats are known to carry rabies.
In other parts of Canada, the rabies virus is found in wild animals such as bats, raccoons,
skunks, foxes and coyotes. In some developing countries, dogs and other animals often carry rabies.
As bats have tiny sharp teeth, bite or scratch marks can go unnoticed. For
this reason, if you have contact with a bat or if you are unsure if you have
been bitten, scratched or licked, you should get advice right away to decide
whether you need rabies prevention treatment.
If you are bitten or scratched by an animal that seems to be sick, behaves
strangely, and may have rabies, you should:
- Wash the wound well with soap and warm water for at least five minutes. Then
flush thoroughly with water. This greatly reduces the chance of infection.
- Seek medical care from your doctor or local public health unit right away.
It is crucial to begin prevention treatment for possible rabies as soon as
possible. It typically takes from three to eight weeks before rabies symptoms
start. If you wait until the symptoms begin to appear, it is usually too late
to start effective medical treatment. If there is any chance that you
may have been exposed to the rabies virus, contact your local public health
unit or family doctor. They will be able to decide if you need rabies treatment.
Animals with rabies often act very strangely. Some animals may become aggressive.
Wild animals often show a lack of fear of humans, and they may attack humans
for no reason.
Symptoms of rabies in animals include paralysis, especially of the hind limbs
and throat muscles. Rabid bats may appear normal except for a gradual weakness
and loss of flying ability. Also, rabid bats may come out in the daytime, which
is unusual bat behaviour.
Prevention treatment is only successful if started before symptoms
appear. It involves getting both rabies vaccine and rabies immune
globulin.
Rabies Vaccine:
- If you have never received rabies vaccine before, you will get five doses
or shots in the upper arm, over a 28-day period. The vaccine makes your immune
system produce antibodies against the rabies virus. Antibodies are proteins
that help to fight infection.
- If you have received a full series of rabies vaccine in the past, you will
get two shots of rabies vaccine over a three-day period. These will boost
your antibodies against rabies.
Rabies Immune Globulin:
- Rabies Immune Globulin (RIG) has rabies antibodies taken from donated human
blood. It is usually given at the same time as the first dose of rabies vaccine.
RIG is given by needle into the area(s) of the bite or scratch, and in a different
place on your body than the vaccine.
Common reactions to the vaccine may include soreness, redness, swelling and
itching where the shot was given. Fever, nausea, headache, muscle aches, fatigue
and dizziness may also occur.
Common reactions to RIG may include soreness or stiffness where the shot was
given. Fever, headache, feeling unwell, rash, or chills may also occur.
Report serious or unexpected reactions to your public health nurse or doctor.
Anyone thought to have been exposed to the rabies virus will receive the vaccine and immune globulin.
Speak with a public health nurse or doctor if you have had a life-threatening
reaction to eggs or egg products.
- Vaccinate your cat, dog, or ferret against rabies and keep its immunization
up-to-date.
- If you find a dead bat, do not touch it.
- If you find a bat in the same room as a sleeping person, a child, or a mentally
disabled or intoxicated person, contact your doctor or public health unit
right away as the bat may have bitten the person. If possible, capture the
bat so it can be tested for rabies.
- Close all doors and windows in the area. Put on a hat, leather gloves,
a long-sleeved jacket, and pants.
- Use a blanket, net, broom or towel to catch the bat (without touching
it and while protecting any exposed area such as the face). Use tongs to
put it in a sealable container. Place the container in a cool, safe place
away from human or pet contact or put it into the freezer, which will make
the bat go into hibernation. Do not kill the bat.
- Call your local public health unit.
- The bat will be tested for rabies. If it does not have rabies,
no treatment will be necessary.
- If bats are in your home, get professional bat control advice.
- If your pet has contact with a bat, consult your public health unit.
- If you are travelling for a month or more to a developing country where rabies
is often found in different animals, consider being vaccinated for rabies before you leave.
Get advice at a travel clinic.
- If you are attacked or bitten by any animal, you should
get medical advice about rabies prevention treatment, no matter how long since
you were bitten.
Effort is made to seek parental or guardian consent prior to immunizations.
Children under the age of 19 who are able to understand the risks and benefits
may consent to or refuse immunizations, regardless of the parent’s or
guardian’s wishes. It is recommended that parents/guardians and their
minor children discuss immunizations beforehand, and ask the nurse or doctor
any questions

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