By age 2, most children will have been infected with respiratory syncytial virus. Children who attend child care centers or who have siblings who attend school are at a higher risk of exposure. Susceptibility is also greater during the peak RSV season, which typically begins in the fall and ends in the spring.
People at increased risk of severe — sometimes life-threatening — infections include:
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- Infants younger than 6 months of age
- Younger children, especially under 1 year of age, who were born prematurely or who have an underlying condition, such as congenital heart or lung disease
- Children with weakened immune systems, such as those undergoing chemotherapy or transplantation
- Infants in crowded child care settings
- Older adults
- Adults with asthma, congestive heart failure or chronic obstructive pulmonary disease
- People with immunodeficiency, including those with certain transplanted organs, leukemia or HIV/AIDS
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- Kliegman RM, et al. Nelson Textbook of Pediatrics. 19th ed. Philadelphia, Pa.: Saunders Elsevier; 2011. http://www.clinicalkey.com. Accessed May 15, 2014.
- Respiratory syncytial virus infection (RSV) — Treatment. National Institute of Allergy and Infectious Diseases. http://www.niaid.nih.gov/topics/rsv/understanding/Pages/treatment.aspx. Accessed May 15, 2014.
- Barr FE, et al. Respiratory syncytial virus infection: Treatment. http://www.uptodate.com/home. Accessed May 15, 2014.
- Symptom relief. Centers for Disease Control and Prevention. http://www.cdc.gov/getsmart/antibiotic-use/symptom-relief.html. Accessed May 15, 2014.
- Policy statement — Modified recommendations for use of Palivizumab for prevention of respiratory syncytial virus infections. American Academy of Pediatrics Policy. http://aappolicy.aappublications.org. Accessed May 14, 2014.