The process of sporozoite formation is called sporogony. The oocyst grows by consuming food. Its nucleus divides repeatedly by first mitosis and then meiosis to form many haploid nuclei. Cytoplasm accumulates around each nucleus to form spherical cells. Later round cells transform into sickle or macule shaped sporozoites. About 10,000 sporozoites are produced from each oocyst. The sporozoites reside in the hemocele of the mosquito. At this time, if the mosquito bites a healthy person, the sporozoite enters the person’s body. About 10% of sporozoites enter the human body during a single bite. A mosquito’s salivary gland can contain up to 326,000 sporozoites. The sporozoites remain in the salivary glands of the mosquito for about 60 days. It takes about 10-20 days from stinging to sporozoite formation.