Marfan syndrome Marfan syndrome is a birth defect that affects the body's connective tissue. Learn the signs and symptoms of Marfan syndrome and how it's treated.
What is full-term? A full-term pregnancy lasts between 39 weeks and 40 weeks, 6 days. Babies born full term have the best chance of being healthy.
Zika virus and pregnancy infographic Zika infection during pregnancy causes a birth defect called microcephaly and other brain problems. Learn how to protect yourself from Zika.