経けい口こう感かん染せんけいこうかんせんじ字FuriganaMeanings1nounoral infection; orally transmitted infectionMedical term for infection acquired through the mouth, typically via contaminated food, water, or oral contact.経けい口こう感かん染せんを防ふせぐため、手て洗あらいが重じゅう要ようです。