防疫 fángyì to prevent epidemics
How to remember 防疫: 防 to protect + 疫 epidemic = to prevent epidemics.
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How it is used
- Epidemic prevention - public-health measures against contagious disease - 防疫政策 (fángyì zhèngcè) epidemic-prevention policy.
- Highly common in news/official language; pairs with 防疫措施, 防疫站 (epidemic-control station).
- Distinct from 免疫 (miǎnyì, immunity) - 防疫 is the societal effort to block spread, not the body's own defense.