[Bacterial flora in the appendix in rabbits with artificially induced acute appendicitis].

The authors present the results of bacteriological analysis of scrapings from the appendical mucosa of 24 rabbits with appendicitis induced by obstruction of the appendix lumen and of 5 rabbits with healthy appendices (controls). In dependence on the duration of inflammation, the recovery of aerobic bacteria was decreasing and that of anaerobic nonsporulating bacteria was increasing. In the group of anaerobic bacteria, gram-negative rods were predominant (number of isolated colonies: 2973 = 79.

[The role of anaerobic non-sporulating bacteria in urinary tract infections].

In selected clinical departments the authors examined for the presence of aerobic bacterial flora 10,760 urine specimens. 3,460 specimens did not contain aerobic bacteria. These samples were examined for anaerobic bacteria.

[Resistance of intestinal strains of Bacteroides to antibiotics and chemotherapeutic agents].

Antibacterial therapy of anaerobic infections usually involves chemotherapy. The basis of therapy is assessment of the minimal inhibitory concentration (MIC) of antibiotic or chemotherapeutic agents needed to eliminate the suspected causal agents of infection. The authors assessed MIC of 9 selected antibiotics and chemotherapeutic agents (metronidazole, chloramphenicol, clindamycin, azlocillin, mezlocillin, cephoxitin, oxytetracycline, lincomycin, erythromycin) by the dilution method in blood agar in 157 strains of the most important types of the genus Bacteroides which were isolated in 1985-1989 from different clinical materials in Bratislava and in Halle (GDR).

Clinical significance of Bacteroidaceae.

Material from 50 patients with purulent otitis media was investigated. All patients had undergone surgical operation. The results indicate that anaerobic non spore-forming bacteria, especially gram-negative rods of the family Bacteroidaceae, may play an important role in the aetiology of purulent otitis media.

Aerococcus viridans as a causative agent of infectious endocarditis.

Identification and properties of Aerococcus viridans isolated from the blood of a patient with infectious endocarditis are described. The role of this agent in the pathogenesis of this disease was demonstrated by repeated cultivations as well as by high titres of specific antibodies in the patient's serum. Pathogenicity of this strain for experimental animals was not demonstrated.

Biotyping and serotyping of Propionibacterium acnes strains isolated from different diagnostic materials.

Fifty strains of Propionibacterium acnes, five strains with the previous designation Corynebacterium parvum and three strains of Propionibacterium avidum were agglutinated by Bacto-Corynebacterium acnes 554 antiserum (Difco); it was not possible to isolate any strain reacting only with 605 antiserum. Only one strain of C. parvum reacted with both sera.