There are Corona Chan and Ebola Chan fictional animated characters inspired by the Ebola and Corina viruses with some fictional animation that should be legal in the United States
Is there legal fictional Hanta Chan animation inspired by the Hanta virus if not you could be the first person to make it
A stationary picture of what Hanta Chan might look like is a start but Ebola Chan got a whole animated Christmas video as part of a video series
https://www.bitchute.com/video/R3bE7K4aVyCO/
Anyway the best thing about your character is that it is Hanta themed and not Hentai themed so thank you for keeping the character legal and rated G for a general audience or safe for work
Because I think search engines try to come up with Hentai if you search for Hanta Chan
Also rat gray is keeping in character for hanta being represented by a rat
Where as Corona chan is represented by a bat
