CHICKEN
POX VACCINE
What
you need to know:
1.
Why get vaccinated?
Chickenpox (also called varicella) is a common childhood disease.
It is usually mild, but it can be serious, especially in young infants
and adults.
•
It causes a rash, itching, fever, and tiredness.
• It can lead to severe skin infection, scars, pneumonia,
brain damage, or death.
• The chickenpox virus can be spread from person to person
through the air, or by contact with fluid from chickenpox blisters.
• A person who has had chickenpox can get a painful rash called
shingles years later.
Varicella
vaccine can prevent chickenpox.
Most
people who get chickenpox vaccine will not get chickenpox. But if
someone who has been vaccinated does get chickenpox, it is usually
very mild. They will have fewer spots, are less likely to have a
fever, and will recover faster.
2.
Who should get chickenpox vaccine and when?
Routine
Children
12-18 months should receive routine immunization.
Susceptible
children 19 months through 12 years should be immunized.
Immunization
is desirable for 13 years and older susceptible persons at highest
risk of exposure and transmitting disease that include:
Those who teach young children
Day care workers
College students
Residents/staff of institutional settings
Inmates/staff of correctional institutions
Military personnel
Non-pregnant women of childbearing age
International travelers
3.
Some people should not get chickenpox vaccine or should wait
•
People should not get chickenpox vaccine if they have ever had a
life-threatening allergic reaction to gelatin, the antibiotic neomycin,
or (for those needing a second dose) a previous dose of chickenpox
vaccine.
•
People who are moderately or severely ill at the time the shot is
scheduled should usually wait until they recover before getting
chickenpox vaccine.
•
Pregnant women should wait to get chickenpox vaccine until after
they have given birth. Women should not get pregnant for 1 month
after getting chickenpox vaccine.
•
Some people should check with their doctor about whether they should
get chickenpox vaccine, including anyone who:
- Has H.I.V./AIDS or another disease that affects the immune system
- Is being treated with drugs that affect the immune system, such
as steroids, for 2 weeks or longer
- Has any kind of cancer
- Is gettiing cancer treatment with radiation or drugs
•
People who recently had a transfusion or were given other blood
products should ask their doctor when they may get chickenpox vaccine.
4.
What are the risks from chickenpox vaccine?
Getting chickenpox vaccine is much safer than getting chickenpox
disease.
However,
a vaccine, like any medicine, is capable of causing serious problems,
such as severe allergic reactions. The risk of chickenpox vaccine
causing serious harm, or death, is extremely small.
Mild
Problems
• Soreness or swelling where the shot was given (about
1 out of 5 children and up to 1 out of 3 adolescents and adults)
•
Fever (1 person out of 10, or less)
•
Mild rash, up to a month after vaccination (1 person out of 20,
or less). It is possible for these people to infect other members
of their household, but this is extremely rare.
Moderate Problems
• Seizure (jerking or staring) caused by fever (less
than 1 person out of 1,000).
Severe
Problems
• Pneumonia (very rare)
Other
serious problems, including severe brain reactions and low blood
count, have been reported after chickenpox vaccination. These are
extremely rare.
5.
What if there is a moderate or severe reaction
What should I look for?
Any
unusual condition, such as a serious allergic reaction, high fever
or behavior changes. Signs of a serious allergic reaction can include
difficulty breathing, hoarseness or wheezing, hives, paleness,
weakness, a fast heart beat or dizziness.
What
should I do?
•
Call a doctor, or get the person to a doctor right away.
•
Tell your doctor what happened, the date and time it happened, and
when the vaccination was given.
6.
How can I learn more?
• Ask your doctor or nurse. They can give you the vaccine
package insert or suggest other sources of information.
References:
Centers for Disease Control and Prevention. http://www.cdc.gov
(accessed February 2008) and Committee on Immunization, Philippine
Society for Microbiology & Infectious Diseases (PSMID) &
the Philippine Foundation for Vaccination (PFV). Handbook on Adult
Immunization for Filipinos 2004.
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