Malaria is a disease primarily transmitted by mosquitoes, specifically by the Anopheles species. This parasitic infection is caused by Plasmodium parasites and is prevalent in tropical and subtropical regions. Symptoms include fever, chills, and flu-like illness, and without prompt treatment, it can become severe and lead to death. Prevention strategies include the use of insecticide-treated bed nets, indoor spraying with insecticides, and antimalarial medications. Vaccines like RTS,S/AS01 have also been developed to reduce the incidence of malaria, highlighting the ongoing efforts to combat this life-threatening disease.