<s>[INST] My brother has Stage 4 stomach cancer and got food poisoning after blending a vegetable shake. He underwent chemotherapy last week and last night had a temperature over 101 degrees. He will not call his doctor about his fever , so my question is; could this be serious or does the food poisoning need to run its course? [/INST] Hello Thanks for your query.Your brother is known to have grade four cancer and on chemotherapy now.He had chemotherapy one week back which was followed by vomiting.It is a known side effect of most of the chemotherapeutic drugs to have anorexia and vomiting So what you think as food poisoning may be a reaction of these agents rather than a food poisoning So please consult the concerned consultant for proper reasoning and treatment.This can be tackled with I/V fluids, multivitamins and antacids. </s>