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Presence of GFP+ cells in the hearts of chagasic chimeric mice. Hearts of chimeric mice euthanized at different time points after infection with T. cruzi were analysed by confocal microscopy. GFP+ (green) myosin+ (a) or F actin+ (b–d) (red) cardiomyocytes were found in heart sections of mice after 33 (a), 60 (b) and 192 (c) days of infection. (d) Heart section of an uninfected chimeric mouse. Nuclei were stained with DAPI (blue).
