Table 2.

Principal Reasons for Assessment of Children With TB and the Number of Children With Adult Source Cases Found in Each Group: California

Reason for AssessmentChild Cases
n (%)
Source Case
Identified
n (%)
Symptoms*52 (32)7 (12)
Contact investigation43 (26)42 (71)
Screening36 (22)4 (7)
Source case investigation7 (4)4 (7)
Unknown27 (16)2 (3)
All reasons165 (100)59 (100)
  • * Includes 4 children infected with M bovis.

  • One presumptive source case was reclassified as TB class 2 (infection without disease) after the contact investigation was performed.