We used numerical taxonomy procedures to analyze data obtained from 227 strains belonging to either the genus or related genera; included were pathogenic and nonpathogenic vibrios isolated from a variety of samples and geographic locations. Each strain was tested for 150 unit characters. At a similarity coefficient of 70 to 75% or more, the 227 strains clustered into 33 phena, representing , and new species of . Non-O1 and O1 serovars of clustered at the species level of relationship (i.e., at a similarity coefficient of ≥75%). Furthermore, subdivision of into classical, El Tor, , and biovars was not observed. In fact, the biovar was found to warrant separate species status as . Only the sucrose-negative members of Heiberg group V were distinguishable as a separate cluster and were recognized as a separate biovar. Sucrose-positive strains and urease-positive strains of were identified. The differences among the four groups of examined did not warrant recognition of biovars.


Article metrics loading...

Loading full text...

Full text loading...


Most cited this month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error