Task: Translation
Input (English): These symptoms were said to be due to "a serious viral infection and chemical substances which are not normally found in food products" as his campaign officials put it.
Output (Japanese): 彼の選挙運動当局の言葉を借りれば、これらの徴候は”通常食品では見つからない重篤なウイルス感染と化学物質”によるものと言われていた。