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Table 1 Parameters (time, person, place) by which cases in the cluster were linked.

From: A Mycobacterium tuberculosiscluster demonstrating the use of genotyping in urban tuberculosis control

Tuberculosis case in cluster Linked to source patient Time Person Place
2, 3 Case X Yes Yes Yes
1, 4, 11 Case X Yes No No
5, 6, 7, 8, 9, 10, A Case X Yes No Yes
14, 22, 23 Case X No No Yes
24, D Case X No Yes Yes
12, 13, 15 Case 11 Yes No Yes
16, 21 Case 11 Yes Yes Yes
B, 17 Case 14 Yes Yes Yes
C Case 18 Yes Yes Yes
26, 27 Case D Yes No Yes
28 Case 23 No Yes Yes
18, 19, 20, 25 No link established No No No
  1. Cases with a number are culture-confirmed; cases with a letter are culture-negative cases epidemiologically linked to the cluster.