罹患

• 読み: りかん
• ローマ字: rikan
• 漢字の分解: 罹 (ri) — suffer from, be stricken by disease; 患 (kan) — affliction, illness
• 発音: /ɾi.kaŋ/

意味

Contracting a disease; morbidity; being affected by illness. The act or state of being struck by a disease.

A formal medical noun and suru-verb (罹患する) used in epidemiology and clinical literature. 罹患率 (morbidity rate, attack rate) and 罹患者数 (number of cases) are standard epidemiological metrics. Considerably more formal than 病気にかかる (to catch a disease) and rarely used in casual speech. Found in academic papers, government health reports, and formal medical contexts.

例文

1. 高齢者ほど重篤な疾患に罹患しやすいことが統計で示されている。
2. 糖尿病に罹患している患者は、感染症への抵抗力が低下する傾向がある。
3. この地域の肺がん罹患率は全国平均を大きく上回っている。

使い方ガイド

場面: medicine, epidemiology, clinical research, public health, statistics

トーン: clinical, academic

起源と歴史

Sino-Japanese compound: 罹 (ri) means to suffer from or be stricken by disease, a character used specifically in medical contexts. 患 (kan) means affliction, illness, or trouble. The compound has been used in Chinese classical medical texts and entered Japanese clinical vocabulary.

文化的背景

時代: Modern

世代: Adult

社会的背景: Professional/Academic