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Immunizations help keep you and your child from getting a disease. They contain medicine that causes the body to make antibodies. These antibodies can then recognize and fight the disease if you or your child is later exposed to it.
Immunizations are also called vaccines or vaccinations.
Vaccines are the best way we have to prevent infectious diseases. A successful vaccine program depends on everyone getting vaccinated.
Ask your doctor what shots your child should get. The U.S. Centers for Disease Control and Prevention (CDC) keeps a list of shots needed for each age group.
The schedule recommended by experts is designed to work best with a child's immune system at certain ages and at certain times. The schedule is set up so that your child gets the best protection possible at the earliest age possible from the fewest shots possible.
Experts review the schedules every year based on the best research available and change the schedules as needed.
A different schedule may not provide protection for your child. If shots are spread out or skipped, a child may get the disease during the delay.
Your child gets as many shots as needed to give him or her full protection from a disease. This may be one shot only, or it may be several doses.
More than one dose may be needed because immunity may have to build up over time. You want the best combination of immediate and future protection for your child. This means that your child needs a certain amount of vaccine spaced apart at different ages. This builds the best protection.
During the last few weeks of pregnancy, mothers give their babies some protection against disease. But it is only for diseases that the mother is protected against. The protection the baby gets does not last long.
Vaccinations in the United States have led to a sharp drop in diseases. Better living conditions have also helped, but they aren't enough to protect you from disease.
Remember that a vaccine gives your child protection from the disease. A vaccine does not get rid of the disease. The disease still exists, and if fewer children get immunized for a disease, the disease could come back.
And some diseases no longer found in the U.S., such as polio, still exist in other countries. People who travel or move to the U.S. can bring these diseases into the country. So it's still very important to have your child immunized.
On very rare occasions, your doctor may suggest waiting to have your child immunized. For example, you may need to wait when your child has:
But children usually can still get a shot even when they have a minor illness. This includes a cold or an ear infection. And children usually can still get a shot when they are taking antibiotics.
Talk to your doctor if you have any concerns about having your child immunized.
Yes. The U.S. Food and Drug Administration (FDA) carefully evaluates all vaccines for safety. After a vaccine is approved, the FDA, the Centers for Disease Control and Prevention (CDC), the vaccine maker, and several other agencies watch for any reports of rare or unexpected reactions. Federal law requires health professionals to report any reaction following an immunization to the Vaccine Adverse Events Reporting System (VAERS).
The risk of problems from a disease is much greater than the risk from the vaccine. Whooping cough, for example, still exists in the U.S. This disease can cause a child to have severe breathing problems or seizures. It can lead to a hospital stay or even death.
No. False claims in the news have made some parents concerned about a link between autism and vaccines. But studies have found no link between vaccines and autism.footnote 1, footnote 2
Most side effects from vaccines are minor, if they occur at all.
The area where the shot was given may be sore. And some children may be fussy or get a slight fever. Your doctor or pharmacist can explain the reactions that could occur.
Children who are allergic to eggs may have a reaction to the type of flu vaccine that contains egg protein. If your child has an egg allergy, ask the doctor if your child can still get the flu vaccine.
Serious side effects are very rare. It's much more dangerous to risk getting the diseases than to risk having a serious reaction to the vaccines.
No. Combined vaccines have no greater risk for side effects than a single vaccine does.footnote 3
Some parents worry about their children getting several vaccines at the same time. They worry that a child's immune system can't handle all those vaccine organisms at the same time.
Getting more than one shot may seem like a lot for a child's body to handle. But babies have billions of immune system cells that are hard at work all the time, fighting the many thousands of germs they're exposed to every day.
More and more vaccines are being combined into a single shot, such as the measles-mumps-rubella shot. This means fewer shots need to be given. Even though the vaccines are combined, each gives the same protection as it would if it were given alone.
Learning about vaccines:
Demicheli V, et al. (2008). Vaccines for measles, mumps and rubella in children. Cochrane Database of Systematic Reviews (4).
Centers for Disease Control and Prevention (2011). Vaccine safety: Thimerosal. Available online: http://www.cdc.gov/vaccinesafety/Concerns/thimerosal.
Centers for Disease Control and Prevention. (2011). Epidemiology and Prevention of Vaccine-Preventable Diseases (The Pink Book), 12th ed. Washington, DC: Public Health Foundation. Also available online: http://www.cdc.gov/vaccines/pubs/pinkbook/index.html.
Other Works Consulted
American Academy of Pediatrics (2008). The Childhood Immunization Schedule: Why Is It Like It Is? Available online: http://www.aap.org/en-us/advocacy-and-policy/Documents/Vaccineschedule.pdf.
Centers for Disease Control and Prevention (2112). Infant Immunizations FAQs. Available online: http://www.cdc.gov/vaccines/parents/parent-questions.html.
ByHealthwise StaffPrimary Medical ReviewerAdam Husney, MD - Family MedicineSpecialist Medical ReviewerJohn Pope, MD - Pediatrics
Current as ofFebruary 9, 2016
Current as of:
February 9, 2016
Adam Husney, MD - Family Medicine
& John Pope, MD - Pediatrics
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