Plesiomonas shigelloides: Um enteropatógeno emergente?

• Autor(a) principal: Falcão, Juliana Pfrimer
• Data de Publicação: 2007
• Outros Autores: Gibotti, A. A., Souza, R. A., Campioni, F., Falcão, D. P. [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://serv-bib.fcfar.unesp.br/seer/index.php/Cien_Farm/article/view/322; http://hdl.handle.net/11449/70138
• topic: Diarrhea; Enteropathogen; Extraintestinal infections; Gastroenteritis; P. shigelloides; cardiotoxin; cotrimoxazole; drinking water; elastin; enterotoxin; fresh water; hemagglutinin; hemolysin; histamine; tetrodotoxin; toxin; abdominal pain; antibiotic sensitivity; bacterial virulence; bacterium isolation; cardiotoxicity; chill; cooking; diarrhea; disease association; disease severity; Enterobacteriaceae; enteropathy; epidemic; feces; fever; fish; food contamination; gastroenteritis; Gram negative bacterium; heating; host; human; ingestion; intestine flora; intestine infection; nonhuman; Plesiomonas shigelloides; review; shellfish; shigellosis; vomiting; water contamination

Plesiomonas shigelloides is a Gram-negative rod-shaped bacterium, of the family Enterobacteriaceae, which has been isolated from freshwater and salt water, freshwater fish, shellfish and many species of animals. Most human P. shigelloides infections are suspected to be waterborne. The organism can be found in untreated water used as drinking water, in recreational water, or in water used to rinse food that is consumed without cooking or heating. The ingestion of P. shigelloides does not always cause illness in the host animal, and the organism may be present temporarily as a transient, noninfectious member of the intestinal flora. It has been isolated from the stools of patients with diarrhea,but it is also sometimes isolated from healthy individuals. P. shigelloides has been implicated in gastroenteritis, usually a self-limiting disease characterized by fever, chills, abdominal pain, nausea, diarrhea or vomiting; in severe cases the diarrhea may be yellowish-green, foamy and tinged with blood. The bacteria may also cause extra-intestinal infection. Furthermore, it can produce toxins and may be invasive. The evidence in favor of considering P. shigelloides as an enteropathogen is not totally convincing. Although it has been isolated from patients with diarrhea and incriminated in some outbreaks involving contaminated water and food, it was not possible, in many P. shigelloides samples associated with gastrointestinal infections, to identify a definite mechanism of virulence.