Lead Sponsor

National Jewish Health

Age

0 - 50 years

Sex

ALL

Healthy Volunteers

Yes

•Women with physician confirmed pregnancy at a gestational age of ≥ 34 weeks. Infants at high risk for atopy will have one or both parents affected by an allergic disease. Infants at low risk for atopy will have no parent or sibling affected by allergic disease. Biologic parent(s) of infants at high risk of atopy will also be enrolled in the study.

•Pregnancy loss or delivery prior to a gestational age of ≥ 34 weeks, a history of substance or alcohol abuse, psychiatric and developmental co-morbidities that would render a subject unable to provide informed consent or perform study-related procedures, AIDS and HIV infection, or a fetus with chromosomal or congenital abnormalities.