TABLE 1.

Summary of P. c. chabaudi strain-specific immunity experiments with mice

Heterologous strain in mixed challenge infectiona	Test(s)b for immunizing strain:
	AS	AJ	AQ	CB
AS		EE	EE	RTQ-PCR, EE
AJ	NT		RTQ-PCR	RTQ-PCR
AQ	NT	RTQ-PCR		NT
CB	RTQ-PCR, EE	RTQ-PCR, EE	EE

^aCombinations of genetically distinct cloned lines of P. c. chabaudi which have been tested for evidence of strain-specific immunity in mixed infections of two strains, one of which is the same as (homologous) and the other different from (heterologous) the strain used to induce immunity in female CBA mice.

^bDifferential elimination of homologous (immunizing) strain from mixed challenge infection in strain-specifically-immunized mice, as measured by RTQ-PCR or by enzyme electrophoresis (EE). NT, combination not tested.