Meaning and Usage
"伝染" (でんせん) specifically refers to the transmission or spread of infectious diseases or contagions. It is often used in medical or health-related contexts to describe how illnesses can pass from one person to another.
Common Collocations
- 伝染病 (でんせんびょう): contagious disease
- 伝染する (でんせんする): to be contagious, to spread infection
- 伝染経路 (でんせんけいろ): route of infection
Usage Notes
When using "伝染," the focus is on the infectious nature of a disease or condition. It is more formal and technical than simply saying "spread" and is often used in news reports, medical discussions, or warnings.
Common Mistakes
Learners sometimes confuse "伝染" with "感染" (かんせん), which also means infection. "感染" emphasizes the state of being infected, while "伝染" emphasizes the act or process of transmission. Use "伝染" when talking about how a disease spreads between people.
Politeness and Register
"伝染" is neutral and appropriate in both formal and informal contexts, but it is mostly used in written or formal spoken Japanese rather than casual conversation.