| The sexual phase of the Plasmodium life cycle is completed with the fertilization of a macrogamete by a flagellar microgamete, and the subsequent generation of sporozoites. |
| They then watched as sporozoites traversed Kupffer cells using a special process distinct from ordinary parasite locomotion. |
| Purification of Cryptosporidium oocysts and sporozoites by cesium chloride and percoll gradients. |
| Oocytes ingested from contaminated soil or other sources excyst in the duodenum, and released sporozoites invade the intestine. |
| The sporoplasm may be either a plasmodial mass, with numerous nuclei, or may form a certain number of uninuclear sporozoites. |
| Infection by sporozoites reduces the fecundity of mosquitoes. |
