TABLE 7.

Aeromonas gastroenteritis in 1988 and 2008: issues and observations

IssueComment(s)
19882008
Aeromonas-associated outbreakNo well-circumscribed outbreak reportedNo progress
Henle-Koch postulatesNot fulfilledMolecular postulates also unfulfilled
Volunteer studiesNegative; no consistent colonization or gastroenteritis producedNo further studies attempted
Aeromonas taxonomyComplicated; gastroenteritis perhaps linked to specific species or genotypesTaxonomy now well defined; gastroenteritis not linked to specific genomospecies or genotypes to date
Virulence genes (enterotoxin)Poorly definedMultiple enterotoxins identified and characterized
Epidemiology studiesMost support a role for Aeromonas in gastroenteritisNo change; rare studies support opposite conclusions