WHAT ARE THE SIGNS TO WATCH OUT FOR? Common symptoms include: - High fever - Chills and sweating - Headache and muscle pain - Fatigue and weakness - Nausea, vomiting and diarrhea In severe cases, one may experience confusion, seizures, difficulty breathing and organ failure. Malaria can kill, especially P. falciparum, which can cause cerebral malaria leading to coma and death if untreated. Early treatment is so crucial.