Research Article

Genetic Vaccination against Experimental Infection with Myotropic Parasite Strains of Trypanosoma cruzi

Table 2

Summary of the ECG records.

Days after challenge StrainSinus arrhythmia mouse groups values
G1G2G3G1 × G2G1 × G3G2 × G3

90Brazil0/610/60/60.001 NS0.012
120Brazil0/610/61/60.001 NS0.044
150Brazil0/611/65/60.001 0.007 NS
180Brazil0/64/64/60.030.03NS

90Colombian0/63/61/5NSNSNS
120Colombian0/63/60/5NSNSNS
150Colombian0/612/60/50.001 NS0.013
180Colombian0/616/61/50.001 NS0.022

Days after challenge StrainAtrioventricular block
mouse groups
values
G1G2G3G1 × G2G1 × G3G2 × G3

90Brazil0/636/646/60.001 0.001 NS
120Brazil0/619/622/60.001 0.001 NS
150Brazil0/65/66/60.007 0.001 NS
180Brazil0/65/63/60.007 NSNS

90Colombian0/620/630/50.001 0.001 NS
120Colombian0/627/615/50.001 0.001 NS
150Colombian0/66/62/50.001 NSNS
180Colombian0/610/610/50.001 0.001 NS

ECG record of mice challenged and treated as described in the legend of Figure 6(a). Values represent the number of episodes (sinus arrhythmia or atrioventricular block) recorded during one minute per total of mice analyzed and were compared by Fisher exact probability test.