Comparison of Some Physical and Immuologic Properties of a Phase I and a Phase II Q Fever Vaccine in Guinea Pigs.
Abstract
A highly purified phase I Q fever vaccine was evaluated by comparing its physical, serologic and protective properties with those of a phase II vaccine currently in use. The concentration of rickettsiae was approximately the same in both preparations. The phase I vaccine had a median protective dose in guinea pigs of 1.8 micrograms, compared with 27.3 micrograms needed for the phase II vaccine. Median doses required for detectable serum complement-fixing, microagglutinating and immunofluorescing antibodies were also lower by factors of 1.5 to 20 times for the phase I vaccine. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 09, 1980
- Accession Number
- ADA085937
Entities
People
- C. E. Pedersen Jr.
- G. A. Higbee
- J. W. Johnson
- R. F. Wachter
Organizations
- United States Army Medical Research Institute of Infectious Diseases