Experimental Evaluation of the Pathogenicity of Different Strains of Schistosoma mansoni

Table 1

Mean numbers of penetrating cercariae and mean numbers of male and female worms in mice infected with BH, SJ, and SD strains of S. mansoni and sacrificed at the eighth week of infection.

S. mansoni strain	Number of infected mice	Penetrating cercariae	Male worms	Female worms	Duncan’s Test*
SJ	10	66.90			A
SD	10	64.50			A	B
BH	15	62.67				B
BH	15		1.73		A
SD	10		1.30		A
SJ	10		0.90		A
SJ	10			0.30	A
BH	15			0.13	A
SD	10			0.10	A

*Means followed by same letter do not differ significantly from each other (α = 0.05).