Evaluation of formalin inactivated V3526 virus with adjuvant as a next generation vaccine candidate for Venezuelan equine encephalitis virus.
V3526, a genetically modified strain of Venezuelan equine encephalitis virus (VEEV), was formalin inactivated for evaluation as a next generation vaccine candidate for VEEV. In this study, we tested formalin-inactivated V3526 (fV3526) with and without adjuvant for immunogenicity and efficacy in BALB/c mice and results were compared to the existing inactivated VEEV vaccine, C84. Mice were vaccinated intramuscularly (IM) or subcutaneously (SC) with fV3526 formulations and challenged with VEEV IAB Trinidad donkey (VEEV TrD) strain by SC or aerosol exposure. Efficacy following SC or aerosol challenge was not significantly different between the fV3526 formulations or compared to C84 despite C84 being administered in more doses and higher concentration of viral protein per dose. These data support further evaluation of fV3526 formulations as a next generation VEEV vaccine.
Martin
Shannon S
SS
DynPort Vaccine Company LLC, A CSC Company, 64 Thomas Johnson Drive, Frederick, MD 21702, USA. smartin40@csc.com
Bakken
Russell R
RR
Lind
Cathleen M
CM
Garcia
Patricia
P
Jenkins
Erin
E
Glass
Pamela J
PJ
Parker
Michael D
MD
Hart
Mary Kate
MK
Fine
Donald L
DL
D000276:Adjuvants, Immunologic / Q000008:administration & dosage; D000818:Animals; D057134:Antibodies, Neutralizing / Q000097:blood; D000914:Antibodies, Viral / Q000097:blood; D004202:Disinfectants / Q000494:pharmacology; D004666:Encephalitis Virus, Venezuelan Equine / Q000235:genetics / Q000276:immunology*; D004685:Encephalomyelitis, Venezuelan Equine / Q000517:prevention & control; D005260:Female; D005557:Formaldehyde / Q000494:pharmacology; D007273:Injections, Intramuscular; D007279:Injections, Subcutaneous; D051379:Mice; D008807:Mice, Inbred BALB C; D016019:Survival Analysis; D015164:Vaccines, Inactivated / Q000276:immunology; D014765:Viral Vaccines / Q000008:administration & dosage / Q000276:immunology*
D000276:Adjuvants, Immunologic; D057134:Antibodies, Neutralizing; D000914:Antibodies, Viral; D004202:Disinfectants; D015164:Vaccines, Inactivated; D014765:Viral Vaccines; D005557:Formaldehyde