Classificação dos graus de lesões de aerossaculite em perus associadas com enterobactérias / [Classification of the levels of the airsacculitis injuries in turkeys associated with Enterobacteriaceae]

Foram padronizados os graus de lesões dos sacos aéreos em perus com aerossaculite, associadas com a presença de isolados de enterobactérias nesses órgãos. Um total de 110 amostras de sacos aéreos de perus machos com aerossaculite foi coletado para o estudo. Durante o processo de abate, as amostras foram coletadas por meio de swabs e submetidas a três métodos de armazenamento (imediato, congelado ou pré-incubado após congelamento) para posterior comparação das suas eficiências de isolamento. Os gêneros da família Enterobacteriaceae foram identificados pelas séries bioquímicas EPM, MILi e citrato de Simmons. O crescimento bacteriano ocorreu em 43,64% das amostras. Neste estudo, quatro padrões de lesões de aerossaculite foram identificados de acordo com as características patológicas dos sacos aéreos. Os principais gêneros de enterobactérias identificadas foram: Escherichia coli, Citrobacter, Proteus, Edwardsiella, Morganella, Kluyvera, Salmonella e Klebsiella. Foi observado que os graus padronizados como 3 e 4 apresentaram maior variedade de gêneros bacterianos. O armazenamento imediato apresentou maior porcentagem de positividade, 41,82%, no entanto o pré-incubado após congelamento se apresentou mais eficaz em relação à quantidade de colônias.(AU)

The degrees of air sac lesions in turkeys with airsacculitis were standardized, associated with the presence of Enterobacteriaceae isolated from these organs. A total of 110 samples of air sacs from male turkeys with airsacculitis were collected and analyzed. During the slaughtering process, the sample collection was done using swabs and submitted to three storage methods (immediate, frozen, or pre incubated after freezing) for further comparison of their isolated efficiency. The bacterial genera of the family Enterobacteriaceae were identified biochemical series EPM, MILi and Simmons citrate. Bacterial growth occurred in 43.64% of samples. In this study, four patterns of aerossaculitis lesions were identified according to the pathological characteristics of air sacs. The frequencies of the Enterobacteriaceae isolated identified in the samples were: Escherichia coli, Citrobacter, Proteus, Edwardsiella, Morganell, Kluyvera, Salmonella and Klebsiella. Otherwise, it was observed that the levels already standardized as level three and four showed higher variety of genus. The immediate storage showed higher percentage of positivity at 41.82%, however, the pre incubated after freezing showed more efficiency in relation to the quantity of colonies.(AU)

Bacteriemia por Kluyvera cryocrescens / Kluyvera cryocrescens bacteremia

La Kluyvera cryocrescens es una enterobacteria gram negativa que se ha aislado del esputo, orina, secreción biliar, líquido peritoneal y sangre en los seres humanos, raramente es causa de infección clínicamente significativa. Sin embargo hay varios casos descritos en la bibliografía, donde se ha manifestado con cuadros de sepsis severa y choque séptico, algunos con adecuada respuesta a diferentes terapias antibióticas. Se presenta un caso de sepsis severa, debido a bacteriemia por Kluyvera cryocrescens, en un masculino de 73 años, y se describe su diagnóstico, tratamiento y evolución. El paciente desarrolló la infección durante su estadía hospitalaria y recibió tratamiento 10 días con cefalosporinas de tercera generación, logrando una adecuada resolución de su cuadro.

Kluyvera cryocrescens is a gram-negative enterobacteria that has been isolated from sputum, urine, bile secretion, peritoneal fluid and blood in humans, but rarely causes clinically significant infections. However, there are several cases described in the literature that have presented with symptoms of severe sepsis and septic shock, some with adequate response to different antibiotic therapies. A case of severe sepsis due to Kluyvera cryocrescens bacteremia is described in a 73 year old male, regarding his diagnosis, treatment and outcome. He develops the infection while hospitalized and received a 10 day course of a third generation cephalosporin achieving adequate resolution of the infection.

Kluyveromyces aestuarii, a potential environmental quality indicator yeast for mangroves in the State of Rio de Janeiro, Brazil

Kluyveromyces aestuarii was found in sediments from 7 of 8 mangroves in Rio de Janeiro; and absent only at one site with heavy plastic bag pollution. Its presence suggests influence in other habitats from a mangrove and its absence in a mangrove suggests some non-fecal pollution or other habitat alteration.

Kluyvera ascorbata Bacteremia after Cyst Excision for Choledochal Cyst / 감염

Kluyvera ascorbata, a new species in the family Enterobacteriaceae, has been rarely isolated from environmental and clinical specimens. It is a potentially dangerous pathogen that can cause serious infection of various organs. Recently, we treated a 32-year old woman, who developed cholangitis about 3 years after excisional operation for type IVa choledochal cyst. K. ascorbata was recovered from her blood. Empirical antibiotic treatment with intravenous ceftriaxone for 7 days followed by oral ciprofloxacin for 5 days was successful. This is the first well-documented case of bacteremia due to K. ascorbata cholangitis in the world.

Identification and Clinical Significance of Kluyvera species / 대한임상병리학회지

BACKGROUND: Kluyvera, a new genus in the family Enterobacteriaceae, has been rarely isolated from clinical specimens and regarded as an opportunistic pathogen. Although there were several case reports in Korea, most of them were reported at a genus level except a case of K. cyrocrescens. We isolated Kluyvera species from seven patients from July 1996 to January 1999. We identified them to species level and investigated their clinical significance. METHODS: The medical records of seven patients were reviewed for demographical findings, underlying diseases, diagnoses, the association of Kluyvera isolates with disease, antibiotic treatments, and clinical outcomes. Eight strains were identified and tested for the antimicrobial susceptibilities by MicroScan Neg Combo type 14 and 21 Panel(Dade Behring, USA). Five of the eight strains had been stored at -70degrees C and were tested for ascorbate fermentation, the ability to grow and ferment glucose at 5degrees C, and the zone of inhibition around carbenicillin and cephalothin. RESULTS: Kluyvera isolates were regarded as true pathogens in six of seven cases including Hickman-catheter associated sepsis(HCAS), empyema, peritonitis, necrotizing cholecystitis, sepsis, and liver abscess although the latter four cases yielded mixed cultures. While three of the six patients had underlying diseases, malignant lymphoma, hepatocellular carcinoma and stomach cancer, other three were previousely healthy. Most of them were improved with an empirical therapy, but Kluyvera species was repeatedly isolated from the HCAS case in spite of the antibiotic treatment; it was cured bacteriologically after the removal of the catheter. The five isolates were all confirmed to be K. ascorbata by positive ascorbate test, and failure to grow at 5degrees C. CONCLUSIONS: Six of the seven cases including three with no underlying diseases, isolates of Kluyvera species were found clinically significant, suggesting that Kluyvera species is potentially pathogenic in healthy individuals as well as compromized hosts. MicroScan system is capable of identifying Kluyvera species at the genus level, but not at the species level. The ascorbate test is simple and useful for differ entiation of K. ascorbata from K. cryocrescens.

Isolation Rate and Biochemical Reaction of Enterobacteriaceae / 대한임상미생물학회지

BACKGROUND: In clinical microbiology the accurate and rapid identification of members of the family Enterobacteriaceae is essential for diagnostic and therapeutic purposes and for epidemiologic studies. Accuracy of identification system depends mainly on data base such as positive rate of biochemical reactions, relative frequency of occurrence of biotype, and isolation frequency of microorganisms. The purpose of this study was to analyze the isolation rate and biotype frequency of the family Enterobacteriaceae isolated from tertiary care hospital in Korea. METHODS: Isolation frequency of the family Enterobacteriaceae isolated from clinical specimens during the period of January 1998 to June 1998 were analyzed. And biochemical phenotypes of 2,022 isolates tested by 10 tube system consisting of 14 conventional biochemical tests were also analyzed. RESULTS: Isolation rate of the family Enterobacteriaceae to the genus level in order of decreasing frequency were Escherichia (37.0%), Serratia (15.9%), Klebsiella (14.9%), Enterobacter (11.1%), Providencia (8.1%), Citrobacter (2.8%), Proteus (2.5%), Morganella (2.4%), Salmonella (2.4%), and Cedecea (0.7%). Among the genus of the family Enterobacteriaceae, Budvicia, Edwardsiella, Ewingella, Hafnia, Kluyvera, Leminorella, Moellerella, Shigella, Tatumella, Xenorhabdus, Yersinia, and Yokenella were not isolated. The number of species and genus of the family Enterobacteriaceae by this study were 48 and 12, respectively. Over 95% of all clinical isolates belonged to only 25 species. CONCLUSIONS: Although these data about frequency of relative isolation rate and biotype patterns of the family Enterobacteriaceae is inadequate according to species and genus, yet these data will be utilized for the application and development of identification method of the family Enterobacteriaceae.

A case of literature kluyvera sepsis in immunocompromised host / 감염

No abstract available.