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Histopathological analysis of Trypanosoma cruzi infection in skeletal muscle. (a) Querétaro, 15 days pi; (b) Querétaro 21 days pi; note the intense basophilic stain areas (arrows); (c) Ninoa, 15 days pi; (d) Ninoa, 21 days pi; (e) Control. Magnification 100x. (f) Inflammation scores (arbitrary units) for Querétaro and Ninoa infections. Data represent average ± SD of 5 nonconsecutive slides per animal of 6 mice in two independent experiments. *P < 0.001, with Student's t-test.
