A. Virus is an unseen character in Grand Theft Auto: Chinatown Wars, whose only appearence is when they send an email to Huang Lee.
In this email, a virus is exposed and it is suggested that Huang forwards the email to everyone he knows:
"A. Virus
(SPAM?) Virus Alert!
A Virus! A Virus!
Send this email to everyone you know DO IT NOW! Then do it again, every hour, on the hour!
A Virus!A Virus!
Sweet Lord! A Virus!"
Trivia
- His email can be considered as a parody of virus warnings.