麻疹

1. Origins, structure, and basic meaning

• Structure: 麻疹 is read as はしか and is the noun for the infectious disease measles.
• Basic usage: A study topic appears in 麻疹について学ぶ, while spread appears in 麻疹が広がる.

2. Common pitfalls and similar expressions

• Special reading はしか
  • The word is read as a whole rather than by simply combining the regular on-readings of its characters.
• Disease and symptom
  • 麻疹 names the disease, not one individual symptom such as fever or a rash.