Rocky Mountain spotted fever vaccine

Rock·y Moun·tain spot·ted fe·ver vac·cine

suspension of inactivated Rickettsia rickettsii prepared by growing the rickettsiae in the embryonate yolk sac of fowl eggs.

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Rocky Mountain spotted fever vaccine

An obsolete vaccine prepared from a sterile suspension of Rioccidianickettsii grown in embryonated chicken eggs; no vaccine is currently available for Rocky Mountain spotted fever.

Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.