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. Author manuscript; available in PMC: 2011 Nov 1.
Published in final edited form as: Int J Tuberc Lung Dis. 2010 Nov;14(11):1447–1453.

Table 1.

DarDar TB case definitions

Definite TB
  • 1

    One or more sputum cultures positive for Mycobacterium tuberculosis with ≥10 cfu; or,

  • 2

    Two or more sputum cultures with 1–9 cfu of M. tuberculosis (indeterminate M. tuberculosis culture); or,

  • 3

    Two or more positive sputum smears for AFB; or,

  • 4

    One or more cultures for M. tuberculosis from the blood or other sterile body site.

Probable TB
  • 5
    Positive chest X-ray plus either
    1. one positive sputum AFB smear, or,
    2. one indeterminate M. tuberculosis culture result; or,
  • 6
    Clinical symptoms/signs plus either
    1. one positive sputum AFB smear, or,
    2. an indeterminate M. tuberculosis culture result; or,
  • 7

    Clinical symptoms/signs and a positive X-ray plus a response to anti-tuberculosis therapy; or,

  • 8

    One positive sputum AFB smear from a sterile site plus clinical symptoms/signs of TB; or,

  • 9

    Caseous necrosis on a tissue biopsy.

TB = tuberculosis; cfu = colony forming units; AFB = acid-fast bacilli.