[Phenotypic characteristics of 100 strains belonging to the mesophilic aeromonas group isolated from feces].

Phenotypic characteristics of 100 strains pertaining to the group of mesophilic aeromonas isolated in feces of patients with diarrhea (23 A. hydrophila, 34 A. sobria, 19 A.

Analysis of the autoagglutination phenomenon, serogroup and hydrophobicity as virulence markers in mesophilic aeromonads isolated from stool cultures.

The autoagglutination phenomenon (AA) was studied in 71 strains of mesophilic aeromonads isolated from stool cultures of patients with acute diarrhea (28 Aeromonas hydrophila, 20 Aeromonas sobria, and 23 Aeromonas caviae). Two phenotypes were considered in the AA+ strains: SP+ (self-pelleting) and PAB+ (precipitation after boiling). Serogrouping of the strains was performed only with the 0:11 serum.

Microbiological characteristics of Weeksella virosa (formerly CDC group IIf) isolated from the human genitourinary tract.

Weeksella virosa (formerly CDC group IIf) is a nonsaccharolytic, oxidase- and catalase-positive, gram-negative rod which is unable to grow on MacConkey agar. At 48 h of incubation on blood or chocolate agar, the colonies present a characteristic appearance: intensely mucoid, adherent, and cream colored as a result of the production of a nondiffusible yellow pigment. This microorganism has been isolated predominantly from the female genitourinary tract, which indicates the opportunity for sexual transmission.

Intradermal and intramuscular route for vaccination against hepatitis B.

A recombinant hepatitis B vaccine was administered to high-risk hospital personnel by intramuscular (20 micrograms) or intradermal (2 micrograms) injections for the primary immunization (n = 69) with three doses and booster immunization (n = 51) with one dose. Basic vaccination performed intramuscularly gave rise to significantly higher seroconversion levels (97.2% versus 78.

[Analysis of the sensitivity of mesophilic Aeromonas isolated from feces to antibiotics of everyday use].

The sensitivity to antibiotics of 56 mesophilic strains of Aeromonas (20 A. caviae, 18 A. sobria and 18 A.

[Biochemical, physiological, and enzymatic study of 78 strains of Helicobacter (Campylobacter) pylori isolated from gastroduodenal biopsies].

A biochemical, physiological and enzymatic study of 78 C. pylori strains isolated from gastroduodenal biopsies is reported. All strains were positive in the oxidase, catalase and urease tests.

Urinary tract infection caused by Enterobacter taylorae.

We present a case of urinary tract infection caused by Enterobacter taylorae in a 70-year-old male with renal lithiasis. The microorganism was isolated in significant numbers from a urine culture. The disappearance of clinical symptoms after antibiotic treatment points to the participation of this microorganism as the etiological agent in the infection.

Non-typhi Salmonella bacteraemia.

We reviewed retrospectively the clinical records of patients with non-typhi Salmonella bacteraemia in our hospital from 1979 to 1988. During the study period 45 non-typhi Salmonella bacteraemias were diagnosed in 43 patients. Ten patients were under one year old and 11 were over 60.

[Analysis of the prevalence of anti-Campylobacter pylori antibodies detected in a healthy human population].

A study was made of the prevalence of anti C. pylori in the healthy adult population. The analytical method used was indirect immunofluorescence.

[Chronic fatigue syndrome associated with Epstein-Barr virus infection].

Epstein-Barr virus (EBV) infection is ubiquitous and may result in multiple and widely different clinical features; the most common of these is infectious mononucleosis (IM). Recently, a group of patients has been included in the chronic EBV infection syndrome (EBVIS), with a sustained nonspecific syndrome consisting of asthenia, anorexia, low grade fever and changes in mood, associated with a viral infection not necessarily caused by EBV; this has been called chronic fatigue syndrome (CFS). We report a patient who fulfilled the criteria for CFS associated with EBV after an acute, well documented EBV infection.

[Human infections caused by Enterobacter sakazakii. Microbiologic considerations].

The clinical and microbiological features of four patients with positive cultures for Enterobacter sakazaii are reported. They corresponded to two wound exudates, one appendicitis and one newborn conjunctivitis. The biochemical and physiological characteristics of this organism are analyzed (inability to ferment d-sorbitol and production of a non-diffusible yellow pigment); its difficult identification and the clinical rarity of its isolation are discussed.

[Effectiveness of ClNa-esculin broth for the rapid identification of the Enterococcus genus].

The efficacy of the ClNa-esculine broth for the rapid identification (2 hours) of the species of the genus Enterococcus was evaluated and compared with the conventional biochemical methods requiring an incubation of 18-24 hours. Out of the 274 evaluated strains, 171 were positive for this investigation; 160 of them corresponded to Enterococcus spp (100%). The sensitivity of the test was 100%, the specificity 99.

[Campylobacter pylori's sensitivity to the bactericidal action of human serum].

The sensitivity to the bactericidal power of the human serum was evaluated on 8 strains of C. pylori, 8 strains of C. jejuni, 2 strains of C.