Could somebody explain to me why I am unable to bite? Is this a bug or did I miss something?

Did you just start a new strain? It looks like you have a skin on but iirc if you have a strain progressing at the same time, that's the one it takes into account. If so, your virus just hasn't progressed far enough to bite yet.

as for biting, why does it say I "no biting" on my ha? I want to be bitten

Have you signed up for a virus? There's a link on the news page for the Voluntary Infection Program

oops, didn't know I had to do that, ty for the info