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7 of The Worst Diseases Known to Man

The world is full of different diseases and conditions. However, some of the worst diseases terrify people all around the world and are very deadly.

The Black Plague

The Black Plague

The black plague is responsible for approximately 75 million deaths and it spanned several continents. Those with the plague experience swollen lymph glands, fever, and spots on the skin. It spreads rapidly, and while uncommon today, it does still occur throughout the world, including the United States.

Polio

Polio

Polio was a major problem at one time, but vaccines have since eradicated it in the United States. About 90 percent of people with polio do not have symptoms, but if it gets into the bloodstream, symptoms can occur. The most severe symptoms are neurological and may include weak muscles and paralysis.

Cholera

Cholera

Cholera is a type of infection that affects the small intestines, and it affects about five million people each year throughout the world. It spreads by drinking or eating things that are contaminated. It can cause diarrhea, dehydration, vomiting, shock, and muscle cramping.

Smallpox

Smallpox

Thanks to the smallpox vaccine, this virus is gone in the United States, but it still occurs in other places throughout the world. Symptoms can include fever, headache, vomiting, overall discomfort, severe fatigue, and severe back pain. Certain strains have a 30 to 35 percent mortality rate.

Ebola

Ebola

Ebola is a type of zoonotic virus that can occur anywhere, but outbreaks tend to occur in African nations. Symptoms can include high fever, muscle and joint pain, weakness, no appetite, headache, sore throat, and stomach pain. This disease has a high mortality rate, especially in undeveloped nations.

Malaria

Malaria

Malaria stems from protozoan parasites, and it is a type of vector-borne infectious disease. Between one and three million people die from malaria every year and up to 515 million experience the infection. Symptoms include fever, headache, nausea and vomiting, chills, fatigue, and sweating.

AIDS

AIDS

AIDS, or acquired immune deficiency syndrome, stems from the human immunodeficiency virus, or HIV. There is no cure for AIDS and it spreads via contact with bodily fluids from a person with the infection. Symptoms include rapid weight loss, extreme fatigue, long-term diarrhea, profuse night sweats, and long-term lymph gland swelling.

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