DELTA - DEscription Language for TAxonomy developed by Dr Mike Dallwitz, Toni Paine and Eric Zurcher, CSIRO Entomology, Canberra, Australia. ICTVdB - The Universal Virus Database, developed for the International Committee on Taxonomy of Viruses by Dr Cornelia Büchen-Osmond  is written in DELTA. The virus descriptions in ICTVdB are coded by, or using data from experts in the field of virology or members ICTV.  The character list is the underlying code. All virus descriptions are based on the character list and natural language translations are automatically generated and fromatted for display on the Web from the descriptions in DELTA-format.
ICTVdB
The Universal
Virus  Database
Index of Viruses