VACCINE SUITABLE FOR PROPHYLAXIS AND CONTROL, RESPECTIVELY, OF THE PIG DISEASE CAUSED BY HAEMOPHILUS PLEUROPNEUMONIAE AS WELL AS A METHOD FOR OBTAINING EXTRACELLULAR PROTEINACEUOSMATERIAL OF HAEMOPHILUS PLEUROPNEUMONIAE SUITABLE FOR USE IN SUCH VACCINES

摘要

The invention relates to a vaccine suitable for the prophylaxis and control respectively of Haemophilus pleuropneumoniae, advantageously of all the serotypes of H.pleuropneumoniae, which vaccine is based on an effective content of a mixture of extracellular proteinaceous material derived from the culture medium of strains of at least two different serotypes of H.pleuropneumoniae preferably derived from the culture medium of at least one H.pleuropneumoniae strain selected from the group of serotypes 1,5,6,9 and 11 on the one hand and from the culture medium of at least one H.pleuropneumoniae strain selected from the group of serotypes 2, 3, 4 and 8 on the other hand.