Table 2.

Summary of the ECG records.

Days after challenge	Strain	Sinus arrhythmia mouse groups			P values
		G1	G2	G3	G1 × G2	G1 × G3	G2 × G3
90	Brazil	0/6	10/6	0/6	0.001	NS	0.012
120	Brazil	0/6	10/6	1/6	0.001	NS	0.044
150	Brazil	0/6	11/6	5/6	0.001	0.007	NS
180	Brazil	0/6	4/6	4/6	0.03	0.03	NS
90	Colombian	0/6	3/6	1/5	NS	NS	NS
120	Colombian	0/6	3/6	0/5	NS	NS	NS
150	Colombian	0/6	12/6	0/5	0.001	NS	0.013
180	Colombian	0/6	16/6	1/5	0.001	NS	0.022
Days after challenge	Strain	Atrioventricular block mouse groups			P values
		G1	G2	G3	G1 × G2	G1 × G3	G2 × G3
90	Brazil	0/6	36/6	46/6	0.001	0.001	NS
120	Brazil	0/6	19/6	22/6	0.001	0.001	NS
150	Brazil	0/6	5/6	6/6	0.007	0.001	NS
180	Brazil	0/6	5/6	3/6	0.007	NS	NS
90	Colombian	0/6	20/6	30/5	0.001	0.001	NS
120	Colombian	0/6	27/6	15/5	0.001	0.001	NS
150	Colombian	0/6	6/6	2/5	0.001	NS	NS
180	Colombian	0/6	10/6	10/5	0.001	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.