noun
Category III infectious disease
A legal classification under Japan's Infectious Diseases Control Law; includes diseases like cholera and bacterial dysentery that require specific reporting and control measures.
コレラは三類感染症に指定されている。
Cholera is designated as a Category III infectious disease.
三類感染症の患者が発生した場合、医師は直ちに届け出なければならない。
When a patient with a Category III infectious disease appears, the doctor must report it immediately.
General term for infectious disease; 三類感染症 is a specific legal subcategory.
Category I infectious diseases (e.g., Ebola, plague) are the most dangerous and require the strictest controls.
Category II infectious diseases (e.g., tuberculosis, SARS) are less dangerous than Category I but still require prompt reporting and isolation.
Compound of 三 (san, 'three'), 類 (rui, 'category'), and 感染症 (kansenshō, 'infectious disease').