The correct answer is option Protozoan.
Malaria is caused by the Protozoan parasite called Plasmodium. It is transmitted by mosquito female Anopheles which bites between the dusk and dawn.
It is an acute febrile illness with an incubation period of 7 days or longer. its symptoms include chills, headache, weakness, abdominal pain, et cetera.
The initial symptoms is mild but later it can be severe.
