BAKTERIE Z RODZAJU PROVIDENCIA - TAKSONOMIA, EPIDEMIOLOGIA, CHOROBOTWÓRCZOŚĆ
Agnieszka Maszewska, Aleksandra Błaszczyk, Agnieszka Torzewska, Antoni Różalski
Zakład Immunobiologii Bakterii, Instytut Mikrobiologii i Immunologii,
Uniwersytet Łódzki, 90-237 Łódź, Banacha 12/16
e-mail: rozala@biol.uni.lodz.pl
Wpłynęło w maju 2006 r.
1. Wstęp. 2. Historia rodzaju Providencia i obecna klasyfikacja bakterii w jego obrębie. 3. Epidemiologia i znaczenie kliniczne
Providencia spp. 4. Czynniki chorobotworczosci Providencia
spp. 5. Podsumowanie
Bacteria from the genus Providencia -
taxonomy, epidemiology, pathogenicity
Abstract: In 1943 Stuart and co-workers described for the first time a group of paracolon bacteria which they designated "anaerogenic paracolon type 29911". Later, in 1951 Kauffman designated them as
Providencia. The current classification of these pathogens is based on DNA-DNA hybridization. Until 2005 the genus
Providencia consisted of 5 species: P. alcalifaciens,
P. rustigianii, P. stuartii, P.rettgeri and
P. heimbachae. In 2005 new species Providencia vermicola was
described. P. alcalifaciens, P. rustigianii,
P. stuartii, P. retgerri are recognized as facultative pathogens that under favorable conditions cause enteric disease, wound and urinary tract
infections. P. alcalifaciens and P. rustigianii cause diarrhea in children, as well as diarrhea in adults who traveled
abroad. P. stuartii has been recognized as a pathogen with an increasing involvement in urinary tract infections, primarily in nursing home patients with long term indwelling urinary
catheters. P. rettgerii causes UTI and nosocomial infections. In this article we focus on the clinical role of
Providencia sp. and on the following potential virulence factors of these bacteria: adherence, invasivenes, urease and lipopolysaccharide
(endotoxin).
1. Introduction. 2. The history of the genus
Providencia and its present classification. 3. Epidemiology and the clinical role of
Providencia spp. 4. Virulence factors of Providencia
spp. 5. Summary
Słowa kluczowe: bakterie Providencia, chorobotwórczość, czynniki
patogenności
Key words: bacteria Providencia, pathogenicity, virulence factors
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