Right Maria, but one can be immune compromised even before treatment due to the body fighting cancer, other medical cinditions. Radiation effects the white blood cells too, even RBC.

Erbitux is not without side effects either, which some weakens the immune system:

Rash, generalized weakness, malaise, fever, low magnesium levels. Less common nausea, vomiting, distress, constipation, poor appetite, headache, abdominal pain, nail or toenail disorder, mouth sores, seelling, difficulty sleeping, itching, low red blood cell count (anemia), infections, Others as well.

I forget my CBC, but needesd a blood transusion due to low hemaglobin, RBC. Raised creatine, which measure the kidney function. Any of the infection can become systemic.

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