摘要:

ABSTRACTAeromonas species have been associated with diarrhea, and disseminating infections. Diarrhea is either “cholera‐like” or “dysentery‐like”. Both types of diarrhea are normally mild. However, either type can be severe enough to cause hospitalization. The sources of Aeromonas in these infections are foods and water. Two virulence factors associated with Aeromonas diarrhea are a relatively heat‐stable cholera‐like enterotoxin and a heat‐labile cytotoxic enterotoxin. Researchers who observed either of these enterotoxins rarely saw evidence of the other. These differences are probably due to the rare occurrence of the cholera‐like toxin and to differences in purification methods. Human feeding studies showed that enterotoxin production is not sufficient for causation of diarrhea. The Aeromonas must also be able to colonize the intestine or invade the intestinal lining. Virulence factors associated with colonization or invasion have

ISSN:0149-6085    

DOI:10.1111/j.1745-4565.1988.tb00503.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

ABSTRACTAeromonas species are associated with marine and fresh water environments, including natural mineral springs, chlorinated and unchlorinated domestic supplies, and polluted water sheds. Most studies attribute water supplied as the principal source for A. hydrophila. Recently, Aeromonas has been recognized as a potential cause of food‐associated gastroenteritis outbreaks. Its actual involvement in large foodborne outbreaks is presently unknown. Aeromonas can be readily isolated from a variety of food sources such as seafoods, meats, dairy products, and poultry. Another potential source is asymptomatic and immuno‐compromised individuals, particularly, food‐handling wo

ISSN:0149-6085    

DOI:10.1111/j.1745-4565.1988.tb00504.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

Methodologies for the isolation of Aeromonas sp. from various sources, utilizing a broad range of media, are presented. Recommendations are made for the identification of Aeromonas isolates to the species level. The current nomenclature of Aeromonas sp. is discussed with reference to previously used taxonomic systems.

ISSN:0149-6085    

DOI:10.1111/j.1745-4565.1988.tb00505.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

ABSTRACTRecent surveys of retail fresh foods (fish and seafood, poultry, red meat, raw milk and vegetables) have indicated the presence of organisms of the Aeromonas hydrophila group in virtually every sample examined. As part of these surveys, A. hydrophila was observed to increase in number during storage of the food at 5°C. Thus, other measures to control the growth of these organisms in retail fresh foods must be sought and evaluated; in addition, measures to destroy any A. hydrophila introduced into the foods must be investigated. This review discusses the various measures besides temperature (pH, NaCl) to control the growth of A. hydrophila in foods as well as their destruction by heat, irradiation, and sanitizers

ISSN:0149-6085    

DOI:10.1111/j.1745-4565.1988.tb00506.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

ABSTRACTAeromonas hydrophila and other Aeromonas spp. are commonly found in fresh water and in foods. Although their isolation from stools of persons with diarrhea has implicated them as a cause of diarrheal disease, these microbes have failed to produce disease, even at very high doses, in voluntary human feeding studies. The presence of A. hydrophila in foods destined for cancer patients is certainly contraindicated, but at present Aeromonas spp. should be considered putative causes of acute gastroenteritis in normal persons. However, regulatory action based on health concerns seems insupportable at this time.

ISSN:0149-6085    

DOI:10.1111/j.1745-4565.1988.tb00507.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

ABSTRACTMembers of the genus Aeromonas are frequently found in the environment, food, and water. Aeromonas hydrophila is a human pathogen which causes skin infections, septicemia, and endocarditis predominantly in immunocompromised patients. Epidemiological studies indicate that A. hydrophila may be an important cause of food‐borne gastroenteritis, but studies in primates and humans have not confirmed the pathogenic role. Further characterization of virulence determinants may clarify the importance of this organism. In this review, the organisms, epidemiological evidence, and the challenge studies are discussed in an attempt to determine the role of Aeromonas sp. in the pathogenesis of food‐borne gastroenteri

ISSN:0149-6085    

DOI:10.1111/j.1745-4565.1988.tb00508.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY