November 5, 2009
The AAP reaffirms the previous information regarding conditions which place children at highest risk of serious outcomes from H1N1 influenza and are highlighted as follows:

• Neurological disorders and neuromuscular conditions (e.g. muscular dystrophy)

• Chronic respiratory diseases associated with impaired pulmonary function and/or difficulty handling lung secretions (such as asthma)

• Moderate to profound intellectual disability (mental retardation) or developmental delay

• Deficiencies in immune function or immune system conditions that require medications or treatments

• Cardiovascular disease including congenital heart disease

• Significant metabolic (e.g., mitochondrial) or endocrine disorders

• Renal, hepatic, hematological (including sickle cell disease) disorders

• Receiving chronic aspirin therapy

• Pregnancy or up to 2 weeks post-partum regardless of how the pregnancy ended

For additional information on children at high risk for serious outcomes from H1N1, click on the following links:

• Detailed information about high-risk categories from the AAP

• CDC 2009-2010 Algorithm for triage of children (up to 18 years) with influenza-like illness