Table 2.

Summary of metacestode infection rates of the fleas used, prior to each infestation.

Infestation Day	Metacestode infection in the original flea batches (%)		Age of the flea batches	Comments
	Feline genotype	Canine genotype
0	40	33.3	13 days	Feline genotype diluted to 33.3% infection rate by adding uninfected fleas
13	13.3	56.7	20 days	Canine genotype diluted to 13.3% infection rate
28	10	60	20 days for the canine genotype 21 days for the feline genotype	Canine genotype diluted to 10% infection rate