It was.
Three more parts of Oliver's immune system went down overnight.

The first to go was Senfive. The enterotoxin that was still floating around knocked out Ollie's antibody system (Town - Tracker). Without this, important disease recognizing agents were wrested away.

That rash was proving rather nasty as well. As Oliver's dermis was being eaten away, nagerous, the γΓ (gamma/delta) T lymphocyte (Town - thief), was digested along with it in a matter of minutes.
Also, lurking deep within Ollie's bowels, another malignant force was at work...
(foreshadowing!)
Oliver is so fucked. Ya'll don't give up on me now, if nothing else, this is a valuable learning experience for me, and there is still a chance for you guys.
Day 3 begins now...