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Smallpox has existed for at least 3000 years and was one of the world's most feared diseases until it was eradicated by a collaborative global vaccination programme led by the World Health Organization. The first symptoms of smallpox include a high fever, fatigue, a headache, and a backache. Smallpox was responsible for 300–500 deaths and estimated 50 million cases. Ethiopia, Kenya, and Somalia are some countries affected.
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The Marburg virus disease made reappearance in 1975, 1980, 1987, 1990, 1998–00, 2004–05, 2007, 2008 and 2017.Nausea, vomiting, chest pain, a sore throat, abdominal pain, and diarrhea may then appear. Symptoms become increasingly severe and can include jaundice, inflammation of the pancreas, severe weight loss, delirium, shock, liver failure, massive hemorrhaging, and multi-organ dysfunction. It first came in African Green Monkeys and affected countries are Kenya, South Africa, Germany,Yugoslavia
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Symptoms are fever, Aches and pains, such as severe headache, muscle and joint pain, and abdominal (stomach) pain.
Weakness and fatigue.
Gastrointestinal symptoms including diarrhea and vomiting.
Abdominal (stomach) pain. Two and a half years after the first case was discovered, the outbreak ended with more than 28,600 cases and 11,325 deaths. Countries affected are The Democratic Republic of the Congo, Gabon, Guinea, Italy, Ivory Coast, Liberia, Mali, Nigeria. -
Most common symptoms: fever, dry cough, tiredness. This virus is still present and started from Wuhan in China. It is spread from bats. Many countries are affected some examples are: Pakistan, United States, India and many more. Total cases up till now are 41,600,999 and deaths are 1,138,003.
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This disease lasted from 1956 till1958. The Asian flu results in symptoms similar to many other strains of influenza, including fever, body aches, chills, cough, weakness, and loss of appetite. Asian flu” affected over 700,000 and 1 million people, respectively. Scientists found that it is far more prominent in the east than in the west, particularly in Southeast Asia.
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The 1918 influenza pandemic was the most severe pandemic in recent history. It was caused by an H1N1 virus with genes of avian origin. The sick, who experienced such typical flu symptoms as chills, fever and fatigue, usually recovered after several days, and the number of reported deaths was low. Infected an estimated 500 million people worldwide about one-third of the planet's population and killed an estimated 20 million to 50 million victims. The United States was affected a lot.
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Over 8,000 people from 29 different countries and territories were infected, and at least 774 died worldwide. The major part of the outbreak lasted about 8 months, since the World Health Organization declared SARS contained on 5 July 2003. The disease causes fever, chills and body aches, and often progresses to pneumonia, a severe condition in which the lungs become inflamed and fill with pus.
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SARS-CoV-2 belongs to the same large family of viruses as SARS-CoV, known as coronaviruses, and was first identified in December 2019 in the Chinese city of Wuhan. Since its appearance, the virus has infected tens of thousands of people in China and thousands of others worldwide.
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People with flu can spread it to others up to about 6 feet away. Most experts think that flu viruses spread mainly by droplets made when people with flu cough, sneeze or talk. It is also called flu. Just two weeks after the first reported case, there were at least 20,000 more.
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You can get infected with rotavirus if you get rotavirus particles in your mouth. People who are infected with rotavirus shed the virus in their stool (poop). This is how the virus gets into the environment and can infect other people. Each year, rotavirus causes an estimated 111 million episodes of diarrhea requiring only home-care, 25 million clinic visits, 2 million hospitalizations, and 352,000–592,000 deaths (median 440,000 deaths) in children <5 years of age.
