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| | Picornavirus Taxonomy Proposals (Site not responding. Last check: 2007-10-20) |
 | | Biological and sequence analysis has indicated that two species of picornavirus, human echovirus 22 and human echovirus 23, have a number of important features which differentiate them from all other picornaviruses studied to date. |
 | | These viruses, which are currently classified, like the other echovirus serotypes, within the enterovirus genus, are highly divergent in sequence, no protein having a greater than 30% level of identity when compared with any other picornavirus. |
 | | There are, however, many precedents where it is understood that the group name describes the type species, but not necessarily other members, of that group. |
| www.iah.bbsrc.ac.uk /virus/Picornaviridae/picornastudygroup/proposals97.htm (831 words) |
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