| 流行性 | liúxíng xìng | Epidemic | 
| 防疫 | fángyì | Preventive (medicine) | 
| 甲型肝炎 | jiāxíng gānyán | Hepatitis A (甲=A, 乙 yĭ=B…) | 
| 乙型肝炎 | yĭxíng gānyán | Hepatitis B (甲=A, 乙 yĭ=B…) | 
| 脑膜炎 | nǎomó yán | Meningitis | 
| 娼妓 | chāngjì | Prostitute; prostitution | 
| 鼓励 | gǔlì | Encouragement | 
| 病毒 | bìngdú | Virus | 
| 输血 | shùxuè | Blood transfusion | 
| 潜伏期 | qiǎnfú qī | Incubation period | 
| 传染病 | chuánrǎn bìng | Infectious disease | 
| 血库 | xuèkù | Blood bank | 
| 途径 | tújìng | Way; channel | 
| 性交 | xìngjiāo | Sexual intercourse | 
| 预防 | yùfáng | Prevent | 
| 药品 | yàopĭn | Drug; medicines | 
| 蔓延 | mànyán | Creep; spread | 
| 注射 | zhùshè | Inject; get a shot |