The individuals with a positive tuberculin skin test reaction are the 30-year-old man with an induration of 5 mm due to high-risk travel and the 2-year-old with an induration of 11 mm. The interpretation of the test depends on individual risk factors such as age and exposure risk. Therefore, options B and D are correct answers to the question.
;
The individuals with a positive tuberculin skin test are the 30-year-old man with an induration of 5 mm due to recent travel from a high-prevalence country and the 2-year-old with an induration of 11 mm. Interpretations of the test depend on individual risk factors. The induration size is critical in determining positive results, particularly based on age and exposure risk. ;