Which statement are incorrect for malaria?

(I) Plasmodium vivax, P. malariae and P. falciparum are different species of plasmodium which are responsible for different types of malaria.

(II) Malignant malaria caused by P. vivax is the most serious one and can even be fatal.

(III) Malaria parasite requires two hosts- human and mosquitoes – to – complete its life cycle.

(IV) The female Culex mosquito is also usually acts as the vector.

(V) Infectious form of plasmodium is gametocyte which enter in body of healthy person through the bite of infected female anopheles mosquito.

(VI) The parasites initially multiply within the liver cells and then attack the red blood cells (RBCs) resulting in their rupture.

(VII) Haemozoin, which releases from ruptured RBCs is responsible for the chill and high fever recurring every three to four days.