TABLE 1.

Mouse strain susceptibilities

Susceptibility and mouse strain	Haplotype	Mortality (%)
Resistant
C57BL/6	H-2b	<10
C57BL/10	H-2b	<10
(C57BL/6 × C3H.RKK)F1		<10
Intermediate
129/J	H-2b	50
BALB/cJ	H-2d	40
CBA/J	H-2k	50
Susceptible
A/J	H-2a	>95
AKR/N	H-2k	>95
DBA/1J	H-2q	>95
C3H.RKK	H-2k	>95
C3H/HeJ	H-2k	>95