Method for producing a bacterial vaccine and novel vaccines prod

Details Method for producing a bacterial vaccine and novel vaccines prod Method for producing a bacterial vaccine and novel vaccines prod

1996-02-15

1997-11-18

Minnifield, N. M.

Chemistry: molecular biology and microbiology

Micro-organism, per se ; compositions thereof; proces of...

Bacteria or actinomycetales; media therefor

4351734, 4351737, 435243, 435961, 425825, 4252561, 4252341, 514 54, C12N 112, C12N 100, G01N 33531, A61K 3901

Patent

active

056886829

ABSTRACT:
A new method for the preparation of a whole cell bacterial vaccine for improved protection against bacterial pathogens, particularly against those pathogens which have multiple antigenic serotypes is described. The method particularly involves selective sonication of the whole cells of virulent strains of the bacteria. The preferred vaccine prevented infection of swine with Actinobacillus pleuropneumoniae (APP), which causes porcine contagious pleuropneumonia. The vaccine has good safety and few side effects even at a higher dose than commonly used for bacterins and improved protection against the homologous serotype of the pathogen; and improved cross-protection against heterologous serotypes. The whole cell vaccine, is most useful for veterinary (lower mammal) vaccines.

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