It actually came to mind that it could be important for the plot or just some interactions to decide how the Virus would operate.
How does it infect its target?
How does long would it take for it to have any effect?
Would the characters need something to combat its effects (not the Digimon infected by it but rather just the virus)
Is can it be cured and if so, is it until certain stage?

These can be left unclear for sake of plot or to avoid rushing the details.

Also, just going to add something that could help in the RP.
The Digimon are divided into [url=http://wikimon.net/Field]fields [/url] that [url=http://wikimon.net/Main_Page]Wikimon[/url] has explained kindly to make it easy to just search most anything there. [url=http://wikimon.net/Category:Digimon_Fields]Here is a link to search digimon by field[/url] and it's listed in the infobox (right hand at the top of the article) on [url=http://wikimon.net/Main_Page]wikimon[/url] if you search just any digimon on there.