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Latent Tuberculosis Infection: A Guide for Primary Health Care Providers

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Appendix B

Identifying Persons From High-Risk Countries

  • Local epidemiologic profiles are the most useful resource to identify countries of highest risk. Health care providers should base testing and treatment decisions on local immigration patterns and epidemiology.
  • In 2011, approximately 62% of TB cases in the United States occurred in foreign-born individuals.
  • The majority of U.S. cases among foreign-born individuals are in people from 7 countries (Mexico, Philippines, Vietnam, India, China, Haiti, and Guatemala).
  • Note that the ranking of countries changes yearly.


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