Tuberculosis: 5. Pediatric disease

Table 3: Criteria for positive result for a Mantoux test* Risk category† Diameter of induration, mm High   5 Moderate  10 Low  15 *The criteria apply regardless of age. †Children at high risk for TB include aboriginal children, recent immigrants, those with HIV infection and those in recent close contact with an adult with active disease. Children at moderate risk include those younger than 4 years of age, those born or living in an area with a high prevalence of TB and those with a parent from such an area.

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