| characterization of whitney's clethrionomy gapperi virus isolates from massachusetts. | six strains of virus were recovered from the blood and/or liver of five clethrionomys gapperi ochraceus trapped in southeastern massachusetts during 1969. biological, antigenic and physiochemical properties of these isolates are reported. usa m-2268a was selected as the reference strain. this strain was identical by complement-fixation and neutralization tests to whitneys c. gapperie virus (usa 64-7855) from new york state and was related to, but distinct from, an unpublished agent (johnson's mi ... | 1976 | 6801 |