What is influenza?
Influenza (also called "the flu") is
a viral infection in the nose, throat and lungs. About 10% to 20% of
Peoples get the flu each year. Some people get very sick. Each year,
about 130,000 people go to a hospital with the flu, and 20,000
people die because of the flu and complications.
The flu may
cause fever, cough, sore throat, a runny or stuffy nose, headache,
muscle aches and tiredness. Some people describe the flu as being
like the worst cold of their life. Most people feel better after 1
or 2 weeks. But for some people, the flu leads to serious, even
life-threatening, diseases, such as pneumonia. Influenza vaccine
(the flu shot) is recommended for people who are more likely to get
really sick to protect them from the flu.
Who is at higher
Some people have a higher risk of flu complications,
like pneumonia. If you are in any of these groups, you should get
the flu vaccine every year:
- All children aged 6 to 23 months
- All adults aged 65 years and older
- All women who are or will be pregnant during the flu season
- Residents in nursing homes and long-term care facilities
- Individuals aged 2 to 64 years who have long-term health
- Children aged 6 months to 18 years who are on chronic aspirin
- Health care workers who have direct contact with patients
- Caregivers and household contacts of children less than 6
months of age
How can I avoid getting the flu?
The best way to avoid
getting the flu is to get the influenza vaccine each fall, before
the flu season. The vaccine is available by shot or by nasal spray.
The vaccines work by exposing your immune system to the flu virus.
Your body will build up antibodies to the virus to protect you from
getting the flu. The flu shot contains dead viruses. The nasal-spray
vaccine contains live but weakened viruses. You cannot get the flu
from the flu shot or the nasal-spray vaccine.
Some people who
get the vaccine will still get the flu, but they will usually get a
milder case than people who aren't vaccinated. The vaccine is
especially recommended for people who are more likely to get really
sick from flu-related complications.
Is there anyone who
shouldn't get the flu shot?
Yes. The following people should
talk to their doctor before getting the flu shot:
- People who have had an allergic reaction to a flu shot in the
- People with an allergy to eggs
- People who previously developed Guillain-Barré Syndrome (a
reversible reaction that causes partial or complete loss of
movement of muscles, weakness or a tingling sensation in the body)
within 6 weeks of getting a flu shot
Is there anyone who shouldn't get the nasal-spray
Yes. The following people should talk to their
doctor before getting the nasal-spray vaccine:
- Children less than 5 years of age
- Adults 50 years of age and older
- People with long-term health problems
- People with weakened immune systems
- Children aged 6 months to 18 years who are on chronic asprin
- People with a history of Guillain-Barré syndrome
- Pregnant women
- People who have had an allergic reaction to a flu vaccine in
the past or to eggs
If I get the flu vaccine, can I still get the flu?
Even with a flu vaccine, you aren't 100% protected. Each year, the
flu vaccine contains 3 different strains (kinds) of the virus. The
strains chosen are those that scientists believe are most likely to
show up in the United States that year. If the choice is right, the
vaccine is 70% to 90% effective in preventing the flu in healthy
people under 65 years of age. If you're older than 65, the vaccine
is less likely to prevent the flu. Even if you get the flu after
being vaccinated, your flu symptoms should be milder than if you
didn't get the vaccine. You'll also be less likely to get
complications from the flu.
Is the vaccine
Yes. The flu vaccine is safe. There are very few side
effects. If you got the flu shot, your arm may be sore for a few
days . You may have a fever, feel tired or have sore muscles for a
short time. If you got the nasal-spray vaccine, you may have a runny
nose, headache, cough or sore throat.
Can I get the flu
vaccine if I am pregnant or nursing?
If you are pregnant
during flu season, you cannot get the nasal-spray vaccine. However,
it is recommended that women who will be pregnant during flu season
get the shot. Pregnancy can increase your risk for complications
from the flu.
It is also safe to get the flu shot while
breast feeding your baby. The flu shot cannot cause you or your
nursing baby to get sick.
What are antiviral flu
Antiviral flu drugs are prescription medicines that
can be used to help prevent and/or treat the flu. There are four
antiviral flu drugs: amantadine (one brand name: Symmetrel),
oseltamivir (brand name: Tamiflu), rimantadine (brand name:
Flumadine) and zanamavir (brand name: Relenza). All 4 of these
antiviral drugs have been approved to treat the flu. If you take one
of these drugs within 2 days of getting sick, it can lessen your
symptoms, decrease the amount of time you are sick and make you less
contagious to other people. However, most healthy people who have
the flu get better without using an antiviral flu drug. Your doctor
will decide whether one of these medicines is right for
Three of the antiviral flu drugs have also been approved
to prevent the flu. These drugs are not a substitute for the
influenza vaccine. They are most often used for flu prevention in
institutions where people at high risk for flu complications are in
close contact with each other, such as nursing homes or hospitals.
For example, during a flu outbreak in a nursing home, residents and
staff might be given the flu vaccine and an antiviral drug to
prevent the flu until the vaccine takes effect.