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Screening Tests for Infants

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Not everyone in this age group may need screening for every condition listed here. Click on the links above to read more about each condition and to determine if screening may be appropriate for you or your family member. You should discuss screening options with your health care practitioner.


Tuberculosis (TB) is an infectious disease caused by Mycobacterium tuberculosis bacteria. TB primarily targets the lungs but may affect any area of the body. It can be spread through the air from person to person through droplets of respiratory secretions such as sputum or aerosols released by coughing, sneezing, laughing, or breathing.

Most of those who become infected with M. tuberculosis manage to confine the mycobacteria to a few cells in their lungs, where they stay alive but in an inactive form. This latent TB infection does not make the person sick or infectious and, in most cases, it does not progress to active tuberculosis. However, some people - especially those with compromised immune systems - may progress directly from initial TB infection to active tuberculosis. People who have HIV are much more likely to become sick if they contract TB. Another increasing concern is drug-resistant forms of TB that are resistant to the antibiotics typically prescribed to treat the disease.

TB is one of the world's deadliest diseases, although it is relatively uncommon in the U.S. Still, it is a large health issue among at-risk groups. Current guidelines call for targeted screening among such groups.


Because of their weak immune systems, infants under 2 years of age are especially susceptible to this infection. According to the American Academy of Pediatrics (AAP), immediate testing with a tuberculin skin test is advised:

  • If an infant has been exposed to someone with active or suspected TB
  • Is an immigrant from a country where TB is endemic or has traveled to those countries
  • Has clinical findings or chest radiograph suggesting TB


U.S. Centers for Disease Control and Prevention: Tuberculosis (TB) Fact Sheet (AAP): Tuberculosis  

Sources Used in Current Review

American Academy of Pediatrics. Recommendations for Preventive Pediatric Health Care. PDF available for download at through Accessed March 2012. 

Batra V. Pediatric Tuberculosis. Medscape. Available online at through Accessed March 2012.