Use of a strain of pasteurella haemolytica, pasteurella multocida serotype a6 for the preparation of a vaccine against the bovine pasteurellose due to pasteurella haemolytica.

摘要

The present invention has for its object the use of a strain of pasteurella haemolytica, pasteurella multocida serotype a6 or of a strain of pasteurella haemolytica, pasteurella multocida serotype a6 in conjunction with a strain of pasteurella haemolytica, pasteurella multocida serotype a1, for the preparation of a vaccine against the bovine pasteurellose due to pasteurella haemolytica. Such a vaccine may comprise at least one element selected from the group consisting of: a) the bacterial cells as a whole and biologically inactivated pasteurella haemolytica, pasteurella multocida serotype a6, b) the fractions of such cells biologically inactivated, etc.) a first substance antigen comprising one or several components antigens having, respectively, a chemical structure substantially identical to that of the ingredients of antigens which are generated by pasteurella haemolytica, pasteurella multocida serotype a6, the said first substance or said components antigens are biologically inactive.