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Top 11 Most Dangerous Viruses in the World

Updated on March 23, 2020

Coronavirus outbreaks from Wuhan have continued to spread, and both the number of infections and deaths have been rising. Many cities in China have cut off traffic with other places. WHO is closely monitoring the development of this outbreak.

The new crown virus currently occupies almost the global public's attention. However, in terms of lethality, coronaviruses such as the new coronavirus and SARS are not the most dangerous viruses for the safety of human life. Avian flu, Ebola virus and other 10 viruses are even more deadly.

1. Marburg virus

The most dangerous virus is Marburg virus. Its name comes from an idyllic town on the banks of the Lahn in Germany-but this town has nothing to do with the virus itself. Marburg virus is a hemorrhagic fever virus. Like Ebola virus, Marburg virus causes convulsions and bleeding from mucous membranes, skin and organs. Its lethality is as high as 90%.

2. Ebola virus

There are five genera of Ebola virus, named after five African countries and regions: Zaire, Sudan, Tay Forest, Bendibugio and Reston. Zaire Ebola virus is the deadliest, with a mortality rate of 90%. It is currently spreading in Guinea, Sierra Leone and Liberia, and elsewhere. Scientists believe that it is likely that fruit bats brought Zaire Ebola into the city.

3. Hantavirus

There are five genera of Ebola virus, named after five African countries and regions: Zaire, Sudan, Tay Forest, Bendibugio and Reston. Zaire Ebola virus is the deadliest, with a mortality rate of 90%. It is currently spreading in Guinea, Sierra Leone and Liberia, and elsewhere. Scientists believe that it is likely that fruit bats brought Zaire Ebola into the city.

4. Bird Flu Virus

Avian influenza viruses of different species often cause panic-this is understandable because its lethality is as high as 70%. But in fact, the most familiar H5N1 bird flu risk is very low. Only people who have been in direct contact with poultry can be infected. This is why most cases occur in Asia, as many Asians raise chickens at home.

5. Lassa virus

A nurse in Nigeria was the first person infected with Lassa virus. The virus is transmitted by rodents. It could become an endemic disease-meaning that the virus has occurred in specific areas, such as in western Africa, and has recurred. Scientists believe that 15% of rodents in western Africa carry the virus.

6. Juning virus

Junin virus can cause hemorrhagic fever in Argentina. People infected with the virus will develop tissue inflammation, sepsis, and skin bleeding. The problem is that these are common symptoms, so it is difficult to detect or confirm the infection of the virus in the first place.

7. Crimea-Congo fever virus

The Crimean-Congo fever virus is transmitted by ticks. It causes diseases similar to Ebola and Marburg viruses. On the first day of the infection, needle-shaped bleeding occurred on the face, mouth and throat.

8. Machupo virus

Machupo virus can cause hemorrhagic fever (also known as typhus) in Bolivia. Infection with the virus will cause a high fever with heavy bleeding. It causes disease in a manner similar to Junin virus. The virus can be passed from person to person, and rodents often carry it.

9. Kosanur forest virus

Scientists discovered the Kosanur forest virus in woodland on the southwest coast of India in 1955. It is transmitted by ticks, but scientists say it is difficult to pinpoint its source, and mice, birds, and wild boar are often thought to be hosts. The infected person develops a high fever, severe headache, muscle pain and bleeding.

10. dengue

Dengue fever has always threatened humanity. If you're planning a holiday in the tropics, it's best to know about dengue fever. Dengue fever is transmitted by mosquitoes and affects 50 to 100 million people every year in popular resorts in countries such as Thailand and India. But this is even more of a problem for the 2 billion people living in areas threatened by dengue fever.

11. Avian Influenza

Avian influenza, the full name of bird flu, is an animal infectious disease caused by a virus. It usually only infects birds. Rarely it can infect humans from animals, and even pass from person to person.

According to the antigenic classification of nucleoproteins, avian influenza virus belongs to influenza A virus. Hemagglutinin (H) has 15 subtypes; neuraminidase (N) has 9 subtypes. Since 2003, bird flu has mainly occurred in East Asia, with H5 and H7 as the main highly pathogenic types. The H7N9 type frequently occurred in China from the end of 2013 to 2014, and has caused many deaths.

© 2020 Tezeh Collins


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    • T col profile imageAUTHOR

      Tezeh Collins 

      4 days ago

      thanks too

    • T col profile imageAUTHOR

      Tezeh Collins 

      4 days ago

      God bless and Thanks for reading

    • Donna-Rayne profile image

      Donna Rayne 

      5 days ago from Sutter Creek

      Tezeh, An informative and interesting article. Thank you for sharing it.


      Donna Rayne

    • Bushra Iqbal profile image

      Aishatu Ali 

      5 days ago from Rabwah, Pakistan

      Informative hub - thank you!


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