Autoimmune disease and chronic lymphocytic leukemia: autoimmune hemolytic anemia, pure red cell aplasia, and autoimmune thrombocytopenia. Diehl LF(1), Ketchum LH.Author information: (1)Department of Medicine, Walter Reed Army Medical Center, Washington, DC 20307-5001, USA.utoimmune disease and chronic lymphocytic leukemia: autoimmune hemolytic anemia, pure red cell aplasia, and autoimmune thrombocytopenia. Diehl LF(1), Ketchum LH. Author information:
A premature baby is one who is born too early, before 37 weeks. Premature babies may have more health problems and may need to stay in the hospital longer than babies born later. They also may have long-term health problems that can affect their whole lives. About 1 in 10 babies is born prematurely each year in the United States.
The average human pregnancy is 40 weeks long. However, a pregnancy is considered term between 37 weeks and 41 weeks 6 days. Babies born on or before 36 weeks 6 days are consider preterm or premature. Babies born between 37 weeks and 38 weeks 6 days are considered early term. Babies born between 39 weeks and 40 weeks 6 days are considered full term.