I missed a couple of pages of discussion here, so this may have already been covered...
To clarify (for me), we know all of our main character group is infected, but (I can't recall from the CDC episode) is EVERYBODY (i.e. the world) infected? If so, that would include the Termites and Bob, and the fact that Bob may or may not have been bitten wouldn't matter anyway. If the world is infected, then they've been cooking and eating infected folks for a while now and it has likely only promoted healthy regularity.
My understanding is that everybody was infected. However, the infection lies dormant until one either days or is bitten by someone who is dead and the virus is active.* So, as for the cannibals, I guess it wouldn't matter.
*Admittedly, I don't quite understand why the virus works differently if one gets bit but, well, if that weren't the case it wouldn't be a zombie show.