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 prophy-laxis and control respectively of Haemophilus pleuropneumoniae,advantageously of all the serotypes of H.pleuropneumoniae, whichvaccine is based on an effective content of a mixture of extracel-lular proteinaceous material derived from the culture medium ofstrains of at least two different serotypes of H.pleuropneumoniaepreferably derived from the culture medium of at least one H.pleu-ropneumoniae strain selected from the group of serotypes 1,5,6,9and 11 on the one hand and from the culture medium of at least oneH.pleuropneumoniae strain selected from the group of serotypes 2,3, 4 and 8 on the other hand.