viruses out there that are equally deadly, and some that are even deadlier. Some viruses, including the novel coronavirus currently driving outbreaks around the globe, have lower fatality rates, but still pose a serious threat to public health as we don't yet have the means to combat them.
Here are the 10 worst killers, based on the likelihood that a person will die if they are infected with one of them, the sheer numbers of people they have killed, and whether they represent a growing threat.
1. MATBURG VIRUS
Identified Marburg virus in 1967 when small outbreaks occurred among lab workers in Germany who were exposed to infected monkeys imported from Uganda.
Total Human Cases : 473
Total Human Deaths : 377
2. EBOLA VIRUS
IDENTIFIED : 1976
Republic of the Sudan and the Democratic Republic of Congo
Total Human Cases : 28,616
Total Human Deaths : 11,323
3. Rabies
Introduced in the 1920 , 59,000 human deaths annually from rabies worldwide.
4. HIV
Recognized in the early 1980s
75 million people infected with the HIV
32 million peopledied of HIV.
Globally, 32.7–44.0 million people were living with HIV at the end of 2018.
5. SMALLPOX
Started in China around the 1500s
In 1980, the WHO declared the world free of smallpox
killed up to 300 million people in the 20th century
around 500 million people in the last 100 years
6. INFLUENZA
Up to 500,000 people worldwide will die from the illness
Spanish flu in 1918 The most deadly flu pandemic
Total Human Cases: 40% of the world's population
Total Human Deaths: 50 million
7. DENGUE
Sickens 50 to 100 million people a year
Dengue sickens 50 to 100 million people a year, according to WHO. Although the mortality rate for dengue fever is lower than some other viruses, at 2.5%, the virus can cause an Ebola-like disease called dengue hemorrhagic fever, and that condition has a mortality rate of 20% if left untreated.
8. SARS-COV
First appeared 2002
Guangdong province of southern China
Spread to 26 countries
Total Human Cases : 8000
Total Human Deaths : 770
9. COVID -19
Identified in December 2019 Chinese city of Wuhan
Total Human Cases Up to 2.8 Million and counting
Total Human Deaths Up to 200,000 and counting
Spread to 210 countries
10. MERS-COV
First appeared Saudi Arabia in 2012
Total Human Cases: 2494
Total Human Deaths: 858
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