Plasmodium falciparum
Plasmodium falciparum is a unicellular protozoan parasite of humans, and the deadliest species of "Plasmodium" that cause malaria in humans. It is transmitted through the bite of a female "Anopheles" mosquito. It is responsible for roughly 50% of all malaria cases. It causes the disease's most dangerous form called falciparum malaria. It is therefore regarded as the deadliest parasite in humans, causing 435,000 deaths in 2017. It is also associated with the development of blood cancer (Burkitt's lymphoma) and is classified as Group 2A carcinogen.
Climate change in Washington
Impacts on "infectious diseases" 
The West Nile Virus is a serious disease linked to climate change in the US that is transmitted by mosquitoes. It favors periods of "drought" and heavy "rain", which are likely to become more common as increased average temperatures in Washington State result in rain replacing snowfall during the winter, resulting in drier summers (chance of drought, particularly east of the Cascades). The mosquitoes will also survive longer because the warmer winters will not eliminate as many bugs as it usually does. Documentation of the West Nile Virus is just beginning in Washington State, but Colorado has been grappling with cases of it since 2002. Total costs there have been estimated at $120 million or $670 million (P. 58), both . Louisiana has been battling cases since 2001, with total costs of $190 million by 2006. In the hopes of avoiding these costs, the Washington Department of Health spends $246,000 per year on surveillance for the virus and Epidemiological follow-up and testing on suspected human cases (P. 59)