The sporozoites that cause infection when a female Anopheles mosquito bites a person are formed in:

1. When a female Anopheles mosquito bites an infected person, the sporozites, containing the malarial plasmodium cells enter into the gut of the mosquito.

2. Here it multiplies and then they are stored in the salivary glands of the mosquito.

3. When the mosquito bites an uninfected individual these sporozites enter into the liver where they multiply and attack the RBC’s causing them to rupture and release a toxin called Haemozoin which causes fever, chills and shivering.