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. Author manuscript; available in PMC: 2014 Feb 2.
Published in final edited form as: Int J Parasitol. 2009 Jun 6;39(13):1455–1464. doi: 10.1016/j.ijpara.2009.05.010

Fig. 1.

Fig. 1

Behaviour of an attenuated (TCC) and virulent (CL-WT) Trypanosoma cruzi strain in experimental infections. Two month-old Swiss mice were infected by i.p. inoculation with 1 × 103 complement resistant (CR) metacyclic trypomastigote forms. Parasitemia and histopathology were analyzed as described in Section 2. (A) Parasitemia (trypomastigotes/100 fields) levels elicited by the attenuated strain TCC and the virulent CL-WT strain. Values are given as means ± SEM. (B) Microphotographs of heart tissue sections from mice inoculated with the attenuated strain TCC (a) and the virulent strain CL-WT (b,c). Note the amastigote nest inside the inflammatory infiltrate (c) elicited by the inoculation of the virulent strain CL-WT (magnification 25×).