What is Influenza (also called “the Flu”)?
Influenza Vaccines
The flu is a contagious respiratory illness caused by influenza
viruses. It can cause mild to severe illness, and at times can lead
to death. Every year in the United States, on average:
· 5% to 20% of the population gets the flu
· more than 200,000 people are hospitalized from flu complications
· about 36,000 people die from flu.
Some people, such as older people, young children, and people with
certain health conditions, are at high risk for serious flu complications.
Symptoms of Flu
· fever (usually high)
· headache
· extreme
tiredness · dry cough
· sore throat
· runny or stuffy nose
· muscle aches
· stomach symptoms,
such as nausea, vomiting, and diarrhea, also can occur but are more
common in children than adults
Complications of Flu
Complications of flu can include bacterial pneumonia, dehydration,
and worsening of chronic medical conditions, such as congestive
heart failure, asthma, or diabetes. Children may get sinus problems
and ear infections.
How Flu Spreads
Flu viruses spread in respiratory droplets caused by coughing and
sneezing. They usually spread from person to person, though sometimes
people become infected by touching something with flu viruses on
it and then touching their mouth or nose. Most healthy adults may
be able to infect others beginning 1 day before symptoms develop
and up to 5 days after becoming sick. That means that you can pass
on the flu to someone else before you know you are sick, as well
as while you are sick.
Who Should Get Vaccinated (According to the Center for Disease Control)?
In general, anyone who wants to reduce their chances of getting
the flu can get vaccinated. However, certain people should get vaccinated
each year. They are either people who are at high risk of having
serious flu complications or people who live with or care for those
at high risk for serious complications. During flu seasons when
vaccine supplies are limited or delayed, including the 2005-06 season,
CDC makes recommendations regarding priority groups for vaccination.
1. People at high risk for complications from the flu:
· People 65 years and older;
· People who live in nursing homes and other long-term care
facilities that house those with long-term illnesses;
· Adults and children 6 months and older with chronic heart
or lung conditions, including asthma;
· Adults and children 6 months and older who needed regular
medical care or were in a hospital during the previous year because
of a metabolic disease (like diabetes), chronic kidney disease,
or weakened immune system (including immune system problems caused
by medicines or by infection with human immunodeficiency virus [HIV/AIDS]);
· Children 6 months to 18 years of age who are on long-term
aspirin therapy. (Children given aspirin while they have influenza
are at risk of Reye syndrome.);
· Women who will be pregnant during the influenza season;
·
All children 6 to 23 months of age;
· People with any condition that can compromise respiratory
function or the handling of respiratory secretions (that is, a condition
that makes it hard to breathe or swallow, such as brain injury or
disease, spinal cord injuries, seizure disorders, or other nerve
or muscle disorders.)
2. People 50 to 64 years of age. Nearly one-third
of people 50 to 64 years of age in the United States have one or more medical
conditions that place them at increased risk for serious flu complications.
3. People who can transmit flu to others at high
risk for complications. Any person in close contact with someone in
a high-risk group (see above) should get vaccinated. This includes all health-care
workers, caregivers of children 6 to 23 months of age, and close contacts
of people 65 years and older.
When to Get Vaccinated
October or November is the best time to get vaccinated, but getting
vaccinated in December or even later can still be beneficial. Flu
season can begin as early as October and last as late as May.
Who Should Not Be Vaccinated
Some people should not be vaccinated or should wait before getting
vaccinated. They include:
· People who have a severe allergy to chicken eggs.
· People who have had a severe reaction to an influenza vaccination
in the past.
· People who developed Guillain-Barré syndrome (GBS)
within 6 weeks of getting an influenza vaccine previously.
· Children less than 6 months of age.
· People who have a moderate or severe illness with a fever.
(These people can get vaccinated once their symptoms lessen.)
If you have questions about whether you should get a flu vaccine,
consult your health-care provider. The above information is directly
from the Center for Disease Control’s website.