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THE HAEMOLYTIC ACTIVITY OF HAEMOPHILUS SPECIES
Author(s) -
Kilian Mognis
Publication year - 1976
Publication title -
acta pathologica microbiologica scandinavica section b microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.909
H-Index - 88
eISSN - 1600-0463
pISSN - 0304-131X
DOI - 10.1111/j.1699-0463.1976.tb01950.x
Subject(s) - haemolysis , microbiology and biotechnology , hemolysin , haemophilus , hemolysis , haemophilus influenzae , strain (injury) , biology , staphylococcus aureus , human blood , agar plate , lytic cycle , bacteria , virulence , virology , immunology , biochemistry , anatomy , antibiotics , physiology , virus , genetics , gene
The importance of the species of blood employed for detection of haemolysis in seventy‐seven Haemophilus strains of human and porcine origin was studied. Significant differences in the visibility of haemolytic zones obtained on the different blood agar media were observed. In decreasing order, the suitability of the species of blood was: calf, sheep, human, rabbit, poultry and horse blood. On plates containing washed sheep or calf red cells the haemolysin of all 36 strains of Haemophilus pleuropneumoniae acted synergistically with the β‐toxin of the Staphylococcus aureus strain used as “feeder strain”, giving rise to a lytic phenomenon resembling the CAMP reaction.