10 Deadliest Diseases in Human History

Photo credit: Bigstockphoto
Photo credit: Bigstockphoto

4. Malaria

Malaria is one of those deadly diseases that continue to persist and afflict humans in present day, infecting millions and killing thousands every year. According to the World Health Organization, there were 219 million reported cases of malaria which caused about 660,000 deaths in 2010 alone. Other estimates report between 350 and 550 million cases and more than 1 million deaths in the same year.

You can put the blame on mosquitoes for this fatal infection. Malaria is blood-borne disease caused by a parasite called Plasmodium, which is transmitted through the bite of an infected female Anopheles mosquito. It is prevalent in tropical and subtropical areas, but could also spread to temperate regions with extreme climates that allow carrier mosquitoes to thrive.

People who travel to places where malaria is endemic are at great risk of acquiring the disease. As of 2010, about 100 countries have already reported malaria as an endemic disease – meaning, it is common there. Around 125 million people travel to these malaria-infested regions each year, and an average of 30,000 become infected.

Deaths caused by malaria have reduced significantly over the recent years. But it is still a life-threatening disease that can kill you if not treated promptly. It initially causes fever, headache, and vomiting after 10 to 15 days of getting bitten by an infected mosquito. Then it interrupts with blood supply to the organs which will eventually cause your death.

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