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Detailed information on trinucleotide repeats, including fragile X syndrome.

Detailed information on uniparental disomy, including information about Prader-Willi syndrome and Angelman syndrome.

Genetic testing can help find diseases that run in a family or don't yet have symptoms.

Did you have chickenpox or get the vaccine as a child? Then you've got nothing to worry about from varicella. But if you didn't, you may not be immune to this infectious disease that can cause complications for a pregnant person and their baby. Read more to find out why, and how to protect yourself.

Diphtheria, pertussis, and tetanus are serious illnesses. A combination vaccine is given to babies and children to provide protection against all three diseases.

It's important to feed your baby a variety of healthy foods at the correct time. Learn more with this helpful guide.

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.

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.

Kyphosis is a deformity of the backbone (spine). It's when the bones of the spine (vertebrae) in the upper back curve outward more than they should.