Class of 2020E

Yellow fever causes 200,000 infections and 30,000 deaths every year

Since the 1980s, the number of cases of yellow fever has been increasing.[6][2] This is believed to be due to fewer people being immune,

more people living in cities, people moving frequently, and changing climate.[2] The disease originated in Africa, where it spread to South America through the slave trade in the 17th century.[1] Since the 17th century, several major outbreaks of the disease have occurred in the Americas, Africa, and Europe.[1] In the 18th and 19th centuries, yellow fever was seen as one of the most dangerous infectious diseases.[1] The yellow fever virus was

Ebola virus disease Classification and external resources Two nurses standing near Mayinga N'Seka, a nurse with Ebola virus disease in the 1976 outbreak in Zaire. N'Seka died a few days later. ICD-10 A98.4 ICD-9 065.8 DiseasesDB 18043 MedlinePlus 001339 eMedicine med/626 MeSH D019142 Ebola virus disease (EVD; also Ebola hemorrhagic fever (EHF)) or simply Ebola is a disease of humans and other primates caused by ebolaviruses. Signs and symptoms typically start between two days and three weeks after contracting the virus, with a fever, sore throat, muscle pain and headaches. Then, vomiting, diarrhea and rash usually follows, along with decreased function of the liver and kidneys. At this time, generally, some people begin to bleed both internally and externally.[1] Death, if it occurs, is typically six to sixteen days after symptoms appear and is often due to low blood pressure from fluid loss.[2] The virus is acquired by contact with blood or other body fluids of an infected human or other animal.[1] This may also occur by direct contact with a recently contaminated item.[1] Spread through the air has not been documented in the natural environment.[3] Fruit bats are believed to be the normal carrier in nature, able to spread the virus without being affected. Humans b

What Are the Symptoms of Ebola?Early on, Ebola can feel like the flu or other illnesses. Symptoms show up 2 to 21 days after infection and usually include:High feverHeadacheJoint and muscle achesSore throatWeaknessStomach painLack of appetite

In a way, communism is an extreme form of socialism. Many countries have dominant socialist political parties but very few are truly communist. In fact, most countries - including staunch capitalist bastions like the U.S. and U.K. - have government programs that borrow from socialist principles. "Socialism" is sometimes used interchangeably with "communism" but the two philosophies have some stark differences. Most notably, while communism is a political system, socialism is primarily an economic system that can exist in various forms under a wide range of political systems.