Influence of normal serum on L-phase variants of Staphylococcus aureus on solid medium.
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Biomedical subjects
Publications and source records attributed to J E Brorson.
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In a retrospective study covering a 13-year period and a population of 817,900 inhabitants, 13 cases of invasive infection caused by Haemophilus species other than Haemophilus influenzae were found. Ten of the infectious episodes were caused by Haemophilus parainfluenzae and three by Haemophilus aphrophilus. The clinical manifestations comprised endocarditis, meningitis, pleuropneumonia, epiglottitis and septicaemia from an unknown focus. These 13 infectious episodes caused by uncommon Haemophilus species constituted less than 3% of the total number (473) of invasive Haemophilus infections registered during the same period of time. Invasive H. influenzae infections were more common in all age groups than infections caused by other Haemophilus species. In contrast to H. influenzae infections, which predominate in childhood, invasive infections due to uncommon Haemophilus species had no predilection for any age group.
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A comparison was performed between bacteriological and serological findings in 97 patients suffering from acute maxillary sinusitis. A significant titre change (larger than or equal to 2 titre steps) of complement-fixing antibodies to H. influenzae was demonstrated in 15 patients. H. influenzae was demonstrated in aspirated sinus secretions from 7 of these 15 patients. Further, titre changes to Neisseria catarrhalis were demonstrated in 25 patients. No significant titre changes in anti-streptolysin and anti-staphylolysin titres were demonstrated. The results are discussed briefly.
Antibodies to Mycoplasma hominis were detected by indirect hemagglutination in nine (56%) of 16 patients with chronic interstitial cystitis. In seven patients (44%), titers of greater than or equal to 160 were found. Antibodies to Ureaplasma urealyticum were detected in three (19%) of these patients; in only one patient was a high titer, i.e., greater than or equal to 160, found. M. hominis was isolated from voided urine of two patients, and U. urealyticum was recovered from the urine of three patients. A similar incidence of antibodies to M. hominis was found in 20 age- and sex-matched women treated transurethrally for bladder tumors. The high incidence of indirect hemagglutination antibodies to M. hominis found in these two groups of urologic patients who were subjected to repeated instrumentation of the urinary tract remains unexplained.