| 尾蚴 | wěi yòu | tailed larva; Cercaria (microscopic larva of parasitic Miracidium flatworm) |
| 1 | Research developments about echinococcosis vaccine are summarized. | |
| 2 | Sections of the lungs at this stage would show larvae in the bronchioles. | |
| 3 | Conductor:I'll ask some of the passengers. Have you any small change, sir? | |
| 4 | These medicines clear microfilariae from the bloodstream and kill most of the adult worms. | |
| 5 | They found that one compound kill the parasite at every level of development - from larva to adult. |