Marburg virus
Marburg virus appeared in 1976, causing bleeding, high fever, organ failure and death in humans. Therefore, this type of virus is considered extremely dangerous.
According to the World Health Organization (WHO), the mortality rate was more than 80% during the 1998 playground in the Democratic Republic of Congo and in 2005 in Angola.
virus virus
Ebola appeared in the Republic of Sudan and the Democratic Republic of Congo in 1976, virus virus is spread through direct contact with body fluids such as blood or tissues of infected humans and animals.
Experts say that different strains of Ebola viruses have different causes of death. The outbreak in West Africa that began in early 2014 was the largest and most complex epidemic to date.
Rabies virus
Rabies is a very dangerous type because they destroy the brain. If not treated promptly, there is a 100% chance that the patient will die.
The rabies vaccine for livestock makes this disease rare in developed countries, but it is still a serious problem in India and some parts of Africa.
HIV virus
In the modern world, the most dangerous thing is still the HIV virus. An estimated 32 million people have died from HIV since it was first discovered in the early 1980s. The disease continues to devastate many low- and middle-income countries, where 95% of HIV infections are recorded.
Bean disease
The diseases of the previous crop killed about a third of those infected, leaving deep scars and blind eyes in the survivors.
In the 20th century alone, chickenpox has claimed the lives of 300 million people, becoming a major burden to the world.
Influenza virus
The most terrible flu pandemic known is the Spanish flu, which began in 1918, affecting 40% of the world's population and killing 50 million people.
Experts say an epidemic like the 2018 outbreak could happen again if a new strain of flu enters the community and spreads from person to person.
virus SARS
According to the WHO, the virus that causes severe acute respiratory syndrome, also known as SARS, first appeared in 2002 in Guangdong province, southern China.
The virus SARS has since spread to 26 countries around the world, infecting more than 8,000 people and killing more than 770 in two years.
SARS has an estimated mortality rate of 9.6%, and so far, there has been no approved treatment or vaccine.
virus MERS
The virus that causes Middle Eastern respiratory syndrome, or MERS, broke out in Saudi Arabia in 2012 and in South Korea in 2015. virus MERS is related to SARS-CoV.
MERS often progresses to severe pneumonia and has an estimated mortality rate of 30% to 40%. MERS has no approved treatment or vaccine.
The SARS-CoV-2 virus, which is related to SARS-CoV, known as the Corona virus, first appeared in December 2019 in the Chinese city of Wuhan.
COVID-19 caused by the SARS-CoV-2 virus has an estimated mortality rate of about 2.3% (as of March 2020). Common symptoms include fever, cough and shortness of breath and can progress to pneumonia.
SARS-CoV-2 has infected more than 118 million people globally and killed more than 2.6 million. The whole world is making efforts to develop diagnosis, treatment and vaccine research.
