8 Horrible Infectious Diseases Humanity Has Triumphed Over

Malaria

Malaria is a widespread disease caused by a tiny parasite in the blood that is spread by mosquitoes and affects humans and animals. The most common symptoms of malaria include fever, tiredness, vomiting and headache. Of course, malaria can even cause death. 

According to medical experts, malaria is still present in many countries, but people have managed to control it. Between 2000 and 2015, the number of malaria deaths dropped by almost half, from about 840,000 a year to 440,000.