Plasmodium vivax is a parasite that causes malaria in humans. It is primarily found in tropical and subtropical regions, where the Anopheles mosquito, which transmits the parasite, thrives. The habitat of Plasmodium vivax includes areas with high humidity and rainfall, such as forests, marshes, and areas near stagnant water bodies. These conditions are ideal for the breeding and survival of Anopheles mosquitoes, which require water for their larval development. Plasmodium vivax can also survive in temperate regions, where the climate is suitable for the Anopheles mosquito to breed. It is important to note that the habitat of Plasmodium vivax is not limited to any specific geographical location, and the parasite can be found in various parts of the world. Preventive measures, such as controlling mosquito breeding sites and using insecticide-treated bed nets, can help reduce the spread of the parasite and prevent the transmission of malaria.