Preliminary study on the immunogenicity of an experimental encephalomyocarditis virus vaccine / 中华微生物学和免疫学杂志
Chinese Journal of Microbiology and Immunology
;
(12): 950-953, 2013.
Artículo
en Chino
| WPRIM
| ID: wpr-440029
ABSTRACT
Objective To prepare an experimental encephalomyocarditis virus ( EMCV) vaccine and study its immunogenicity .Methods EMCVs were cultured in Vero cells and viral titer was detected by micro cytopathy method .A series of procedures including concentration , filtration and ultracentrifugation were conducted to purify EMCVs .Formaldehyde and β-propiolactone were used for viral inactivation and their efficacy was evaluated .The median lethal dose ( LD50 ) of EMCV was measured by using Reed-Muench method.The serum antibody titers in BALB/c mice vaccinated with different immunization strategies were analyzed through microneutralization assay .Then the immunized mice were challenged with 100LD50 , 50LD50 and 25LD50 of EMCV by intraperitoneal injection .Results The viruses could be inactivated by β-propiolactone at a volume ratio of 1 ∶4000 for 12 hours at 4℃.The LD50 of EMCV was 17 CCID50/ml.The immunized mice produced neutralizing antibodies and displayed resistance to EMCV infection.Conclusion The experimental EMCV vaccine could induce protective antibodies in mice .
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Idioma:
Chino
Revista:
Chinese Journal of Microbiology and Immunology
Año:
2013
Tipo del documento:
Artículo
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