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Proportion of household contacts that were identified as high-risk contacts. Some household contacts met multiple criteria as follows: age <5 years old group: 1 HIV+ & TBI, 1 HIV+ only, 1 TBI only; HIV+ & age ≥5 years old group: 43 TBI. TBI was diagnosed by either interferon gamma release assay or tuberculin skin test. Abbreviations: HIV, human immunodeficiency virus; TBI, tuberculosis infection.
