I have also heard of chills/fever associated with Erbitux -- and some chemo drugs can also cause these problems. However there could be low-grade pneumonia or even, other infections which would cause these symptoms.

The suggestion that the MO get involved asap is correct. My husband had a serious blood infection -- or rather, one that could have been serious or even life-threatening (multi-antibiotic-resistant Staph) if the ER and his oncologists had not gotten him into hospital and on intravenous antibiotics stat. (He was feeling OK the next day, really amazing). His only initial symptoms were chills and a low fever, also feeling *really* rocky suddenly (not that he wasn't already feeling pretty bad, it was his last week of radiation). Symptoms of a serious problem can be very subtle.

Gail