The Plasmodium parasite is a single-celled parasitic protozoan. When these parasites spread to the human body, they can affect organs which are the liver and red blood cells in blood stream. This is because the parasites start to mature in the liver and spread through the bloodstream with the infected red blood cells.

After that, the human body starts to react by a cycle of fever, sporadic sweating and also anaemia. Malaria often leads to death or damage to vital organs such as the heart, lungs or kidneys if it is left untreated due to disruption of blood supply to the brain.

Malaria usually affects the community in tropical and subtropical regions such as Malaysia, Indonesia, Thailand, China, Japan and others. This region is suitable for mosquitoes to breed because it is a warm and humid environment. 

Usually malaria can be harmful to all society but is incredibly harmful to very young children especially. The parasites also can affect other vertebrate species including birds, reptiles and mammals.

Malaria is also one of the outbreaks of infectious diseases that occur after a flood. This is because the result of flooding facilitated the breading of the mosquitoes especially in stagnant water. As we know, post-flood can create unsanitary conditions for the reproduction and multiplication of harmful disease vectors and pathogens. 

The Anopheles mosquitoes are usually active between dusk and dawn.