11 Deadliest Viruses on Earth

Viruses come in various forms from different virus families. They are microscopically small but can severely infect a vast portion of the living world.

What is a Virus?

Viruses are microscopic parasites, generally much smaller than bacteria. They cannot thrive and reproduce outside of a host body.

A viral disease occurs when pathogenic viruses invade an organism’s body and infectious virus particles (Virions) attach to and enter susceptible cells.

List of Deadliest Viruses on Earth

1. Rabies
2. Hantavirus
3. Influenza
4. Dengue
5. Smallpox
6. Ebola virus
7. Rotavirus
8. Marburg Virus
9. Human Immunodeficiency Virus (HIV)
10. SARS Coronavirus
11. MERS-CoV