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. 2019 Aug 21;14(8):e0221100. doi: 10.1371/journal.pone.0221100

Table 1. Treatment of chronic Chagas disease with nifurtimox. Conventional PCR results before and after treatment in prolonged follow-up (6.6 years average).

After treatment
Positive Negative Total
Positive 6 (5.3%) 90 (78.9%) 96 (84.2%)
Before treatment
Negative 1 (0.9%) 17 (14.9%) 18 (15.8%)
Total 7 (6.1%) 107 (93.9%) 114 (100%)

(p<0.0001)