| salmonella typhimurium | 鼠伤寒沙门氏菌 |
| scarlet fever | 猩红热 |
| schistosomiasis | 血吸虫病 |
| schizont | 裂殖体 |
| septicemia | 败血症 |
| septic shock | 感染性休克 |
| Shwartzman's reaction | 施瓦茨曼反应 |
| Schick’s test | 锡克试验 |
| smallpox | 天花 |
| sodium antimony subgallate | 没食子酸锑钠 |
| source of infection | 传染源 |
| spirochetemia | 螺旋体血症 |
| sterillization | 消毒 |
| street virus | 街毒 |
| subacute scletosing panencephalitis(SSPE) | 亚急性硬化性全脑炎 |
| subclinical infection | 亚临床感染 |
| subtertain malaria | 恶性疟 |
| sudden infant death syndrome(SIDS) | 婴儿猝死综合征 |
| superinfection | 重复感染 |
| supportive treatment | 支持疗法 |
| susceptibility of masses | 人群易感性 |
| syphilis | 梅毒 |