Haemophilus aphrophilus Isolated from Blood

H. aphrophilus was isolated from 11 successively cultivated blood samples of a male (72) with a fatal atypical endocarditis. Identification and differential diagnosis from Actinobacillus (Haemophilus) actinomycetemcomitans was done on the basis of phenotypic characters of the microorganism. Haemophilus aphrophilus is a species constituting a part of the oral microflora of man (14, 16, 18), though since it first description by Khairat in 1942 (17), frequent reports have also occured pointing to its association with severe illnesses (4, 8, 10, 11, 12, 22, 26, 28), mostly cases of endocarditis. The strains isolated by us came also from a case of clinically atypical endocarditis. H. aphrophilus wurde aus 11 aufeinander folgenden Blutproben eines männlichen Patienten (72) mit letaler atypischer Endokarditis isoliert. Identifizierung and Differentialdiagnose gegenüber Actinobacillus (Haemophilus) actinomycetemcomitans erfolgte auf der Grundlage der Phänotypeigenschaften des Mikroorganismus. Haemophilus aphrophilus is a species constituting a part of the oral microflora of man (14, 16, 18), though since its first description by Khairat in 1942 (17), frequent reports have also occurred pointing to its association with severe illnesses (4, 8, 10, 11, 12, 22, 26, 28), mostly cases of endocarditis. The strains isolated by us came also from a case of clinically atypical endocarditis.