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Know Your Risks

A pregnant woman passes antibodies to her unborn baby through the placenta to protect against certain diseases. How long does this natural immunity last?

ImmunizationsSee All
Diphtheria, pertussis, and tetanus are serious illnesses. A combination vaccine is given to babies and children to provide protection against all three diseases. ...more
The MMR vaccine is given in 2 doses--at 12 to 15 months and at 4 to 6 years, or at least 1 month after the first dose. ...more
The poliovirus destroys the nervous system, causing paralysis. Today, polio is extremely rare in the United States because of the polio vaccine. It's still common in other countries, though, so children still need to be immunized. ...more
 Haemophilus Influenzae Type b (Hib) in Immunizations
Haemophilus influenzae type b is a serious bacterial disease that usually strikes children younger than 5. It is spread from person-to-person by coughing and sneezing. ...more
 Chickenpox in Immunizations
Chickenpox is a common childhood disease that causes an itchy, blistering rash and is easily spread to others. Read more about it. ...more
 Pneumococcal Infection in Children in Immunizations
Pneumococcus bacteria can cause serious illness in children, including pneumonia, infection in the blood, and meningitis. ...more
 Hepatitis B Virus (HBV) in Children in Immunizations
An infant or young child who contracts hepatitis B is at greater risk of staying infected with the virus and of having lifelong liver problems, such as scarring of the liver and liver cancer. ...more
 Childhood Immunizations in Immunizations
Your little one will need several immunization shots to help protect them from several childhood diseases, some of which can be deadly. Read on for helpful advice on which shots they need and when, and learn what to do if they have a minor reaction. ...more
Diphtheria, pertussis, and tetanus are serious illnesses. A combination vaccine is given to babies and children to provide protection against all three diseases. ...more
The MMR vaccine is given in 2 doses--at 12 to 15 months and at 4 to 6 years, or at least 1 month after the first dose. ...more
The poliovirus destroys the nervous system, causing paralysis. Today, polio is extremely rare in the United States because of the polio vaccine. It's still common in other countries, though, so children still need to be immunized. ...more
 Haemophilus Influenzae Type b (Hib) in Immunizations
Haemophilus influenzae type b is a serious bacterial disease that usually strikes children younger than 5. It is spread from person-to-person by coughing and sneezing. ...more
 Chickenpox in Immunizations
Chickenpox is a common childhood disease that causes an itchy, blistering rash and is easily spread to others. Read more about it. ...more
 Pneumococcal Infection in Children in Immunizations
Pneumococcus bacteria can cause serious illness in children, including pneumonia, infection in the blood, and meningitis. ...more
 Hepatitis B Virus (HBV) in Children in Immunizations
An infant or young child who contracts hepatitis B is at greater risk of staying infected with the virus and of having lifelong liver problems, such as scarring of the liver and liver cancer. ...more
 Childhood Immunizations in Immunizations
Your little one will need several immunization shots to help protect them from several childhood diseases, some of which can be deadly. Read on for helpful advice on which shots they need and when, and learn what to do if they have a minor reaction. ...more
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Preventing Childhood ObesitySee All
Although it is not a perfect measure, BMI gives a fairly accurate evaluation of how much of your teen's body is made up of fat. ...more
The cholesterol in blood comes from 2 sources: the foods your teen eats and their liver. The liver, however, makes all of the cholesterol your teen's body needs. ...more
Encourage your teen to eat three balanced meals a day, with fruits or vegetables as snacks. ...more
Teens need at least 60 minutes of moderate to vigorous physical activity on most days for good health and fitness and for healthy weight during growth. ...more
Detailed information on diagnosing and evaluating heart disease in children...more
You may think of heart disease as a problem for adults, not your young children. But diet and exercise habits started in childhood can begin a lifetime of heart health, or a lifetime of heart damage. ...more
Most children become obese because of a poor diet, lack of physical activity, and other lifestyle issues. In rare cases, however, a child's excess weight may be because of a specific illness....more
Although it is not a perfect measure, BMI gives a fairly accurate evaluation of how much of your teen's body is made up of fat. ...more
The cholesterol in blood comes from 2 sources: the foods your teen eats and their liver. The liver, however, makes all of the cholesterol your teen's body needs. ...more
Encourage your teen to eat three balanced meals a day, with fruits or vegetables as snacks. ...more
Teens need at least 60 minutes of moderate to vigorous physical activity on most days for good health and fitness and for healthy weight during growth. ...more
Detailed information on diagnosing and evaluating heart disease in children...more
You may think of heart disease as a problem for adults, not your young children. But diet and exercise habits started in childhood can begin a lifetime of heart health, or a lifetime of heart damage. ...more
Most children become obese because of a poor diet, lack of physical activity, and other lifestyle issues. In rare cases, however, a child's excess weight may be because of a specific illness....more