Here are the 10 most deadliest viruses in human history. This video features: 10. Yellow Fever 9. Ebola Virus 8. Rabies Virus 7. Influenza 6. Smallpox 5. Dengue Virus 4. Measles 3. Rotavirus 2. HIV/Aids 1. Hepatitis B Read more - http://bit.ly/1ntehW3
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