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1/47. flavobacterium meningosepticum sepsis in an infant with a diarrheal prodrome.

    A full term, previously normal 2 1/2-month-old black boy was transferred to our hospital from an outlying facility on hospital day 5 for failure to thrive. Three weeks before transfer, the infant was hospitalized for a diarrheal illness with fever. The baby received 3 days of ceftriaxone empirically and was discharged home after the sepsis evaluation was negative. Mild diarrhea and steady weight loss continued and the baby was readmitted. blood culture done on admission grew flavobacterium meningosepticum, an organism previously described as an uncommon cause of sepsis in neonates and immunocompromised individuals. As it is water-borne, it has been associated with infection via contaminated water. This organism is usually resistant to antibiotics commonly used for empiric treatment. To our knowledge, this is the first reported case of flavobacterium bacteremia associated with a prodromal and concurrent diarrheal illness.
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2/47. ochrobactrum anthropi bacteremia.

    ochrobactrum anthropi (O. anthropi ), formerly known as achromobacter CDC group Vd, is a gram-negative bacillus that is aerobic, oxidase producing, and nonlactose fermenting. This organism has been found in environmental and hospital water sources and has pathogenic potential in humans. Most reports in the literature of O. anthropi bacteremia are associated with intravenous line infections. We describe a case of bacteremia with O. anthropi in a 33-month-old boy with acute osteomyelitis. O. anthropi bacteremia also has been reported in immunocompromised hosts. Rarely, O. anthropi has been a cause of soft tissue or bone infection.
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3/47. Two cases of chromobacterium violaceum infection after injury in a subtropical region.

    chromobacterium violaceum is a gram-negative rod and is isolated from soil and water in tropical and subtropical regions. The species have pigmented and nonpigmented colony types. Infections caused by nonpigmented strains are rare. We report on two cases of infection caused by both pigmented and nonpigmented strains of C. violaceum. Two 24-year-old korea Airline stewardesses were admitted to Inha University Hospital, Inchon, South korea, on 9 August 1997, 3 days after an airplane accident in guam. Both had multiple lacerations on exposed parts of their bodies. There was swelling, tenderness, and pus discharge. The wounds contained many small fragments of stones and weeds. A pigmented strain was isolated from the left hand and a nonpigmented strain was isolated from the left knee of one patient. For the other patient only a nonpigmented strain was isolated from a foot wound. The nonpigmented colonies from the left-knee and the left-foot wounds did not produce any pigment even after an extended period of incubation. The biochemical characteristics were the same for each strain except for oxidase and indole reactions. The pigmented strain was oxidase negative and indole positive, whereas the nonpigmented strains were oxidase positive and indole negative. The patients were successfully treated by debridement and with appropriate antibiotics.
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4/47. edwardsiella tarda bacteraemia--complicated by acute pancreatitis and pyomyoma.

    edwardsiella tarda (E. tarda) has recently become recognized as a pathogen in humans. Here we report a new case of E. tarda bacteraemia complicated by acute pancreatitis and pyomyoma. A 46-year-old female came to our emergency room complaining of sudden onset of left upper quadrant pain and vomiting for the previous few hours after drinking three bottles of wine. An abdominal computed tomography (CT) scan revealed multiple biliary stones, acute pancreatitis with extensive inflammatory change, and a large uterine myoma. fever, watery diarrhoea, and mild suprapubic discomfort with vaginal spotting were noted soon after admission. The patient's blood cultures yielded E. tarda and symptoms subsided after antibiotic therapy. fever and severe suprapubic pain with rebound tenderness developed 12 days later. Repeat abdominal CT scan revealed an enlarged uterine myoma with central necrosis. The patient subsequently underwent anterior total hysterectomy and bilateral salpingo-oophorectomy, revealing a uterine myoma with infarction and abscess formation. The patient recovered uneventfully and was discharged 1 week later.
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5/47. Aeromonas abscess in an immunocompromised child.

    An 11-year-old immunocompromised child developed cellulitis and abscess due to aeromonas hydrophila at the site of bone marrow aspiration after swimming in a freshwater lake. The patient required treatment with intravenous antibiotics and surgical debridement to eradicate the infection. Both common and unusual organisms may complicate infections at the sites of percutaneous procedures.
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6/47. Epidemiological investigation of ochrobactrum anthropi strains isolated from a haematology unit.

    ochrobactrum anthropi is an oxidase-producing gram-negative bacillus preferring aqueous environments. It is an opportunist of low pathogenicity with a wide and unpredictable antibiotic resistance. We observed bacteraemia caused by this organism in two immunocompromized patients hospitalized in the same haematology unit and catheter-associated sepsis was recognized within two days. Another isolate was obtained from the stools of a third patient of the same unit. Environmental investigations recovered an isolate from a tap-water sample of the unit. Pulsed-field gel electrophoresis analysis of these four isolates and two others isolates previously found in the same ward, showed identical restriction patterns for the two blood isolates and confirmed that the two bacteraemia were epidemiologically related.
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7/47. Aeromonas wound infection in burns.

    Infection of burn patients with the Aeromonas organism is an uncommon event. This paper documents four cases of aeromonas hydrophila and one case involving both A. hydrophila and A. caviae occurring in burn patients between 1990 and 1998 at the Royal Brisbane Hospital burns unit. The organism was isolated from either skin swabs, tissue samples, blood cultures or cultured lines. In all patients there was a history of immersion in water immediately post burn. There is one case of invasion and destruction of deeper tissues and one fatality. Appropriate management requires a high index of suspicion if a history of immersion in untreated water post burn is given and the treatment involves aggressive excision and antibiotic therapy.
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8/47. ochrobactrum anthropi bacteremia in a patient on hemodialysis.

    Although newer tunneled dialysis catheters offer improved capacity for blood flow and efficiency of dialysis, catheter-associated bacteremia remains an extremely important complication of this access strategy. This is a report of a case of catheter-associated bacteremia with ochrobactrum anthropi, a water-borne gram-negative rod with an unusual pattern of antibiotic resistance. Given the organism's hydrophilic property and the frequency of catheter use in debilitated individuals with end-stage renal disease, ochrobactrum anthropi infection should be considered in the differential diagnosis of a hemodialysis patient with unexplained fever.
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9/47. chryseobacterium in burn wounds.

    Chryseobacteria are gram negative organisms, formerly known as Flavobacteria, which rarely cause infections of burn wounds. This article documents three cases of chryseobacterium infection in burn wounds and adds to the other two cases that have been reported in English literature. Two patients died, with one of the deaths linked to a Chryseobacteria bacteraemia. In two patients, there was an associated history of first aid treatment with untreated water. patients whose burn wounds are suspected to be infected with chryseobacterium require wound excision and coverage in combination with antibiotic therapy such as ciprofloxacin, vancomycin and rifampicin.
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10/47. Case report. Epididymo-orchitis and bacteremia caused by plesiomonas shigelloides in an hiv-infected patient.

    Invasive infection and extraintestinal complications are rarely caused by plesiomonas shigelloides, a waterborne bacterium implicated in gastroenteritis. Recent evidence from several reports suggests its importance in causing opportunistic infections in immunocompromised hosts. We report a case of P shigelloides bacteremia and epididymo-orchitis in a patient with hiv infection and chronic hepatitis c. This case illustrates a novel site of involvement by P shigelloides and underscores its role as an opportunistic pathogen.
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