| Test | 
        Positive | 
        Negative | 
        Contaminated | 
        Not done | 
        Total | 
       
      
        | Smear | 
        94 (39.8%) | 
        142 (60.2%) | 
        - | 
        - | 
        236 | 
       
      
        | Culture | 
        109 (51.4%) | 
        94 (44.3%) | 
        9 (4.3%) | 
        24 | 
        236 | 
       
      
        | PCR | 
        122 (57.5%) | 
        90 (42.5%) | 
        - | 
        24 | 
        236 | 
       
     
    PCR yielded 122 (57.5%) positive suspected cases and 90 (42.5%) negative cases, table (2). Among the positive PCR cases, 72 were positive in both smear examination and culture. It confirmed 102 (93.6%) of culture positive and 78 (88.6%) of smear- positive. Moreover, it detected 44 (35.6%) of smear-negative among which 30 samples were culture positive. Out 90 negative PCR- suspected cases, 75 were negative in both smear microscopy and culture. 7 (6.7%) were culture positive, (table 3). |