Figure 2From: Genotyping and drug resistance patterns of M. tuberculosis strains in Pakistan Distribution of M. tuberculosis shared types by age. The graph illustrates number of clustered spoligotypes isolated from the different age groups expressed as a percentage of total isolates in that cluster (% of clusters). * Beijing strains showed significant association with < 15 year age group (P = value 0.03 Pearson's Chi Square test).Back to article page