Smallpox has been the most devastating diseases in the world. It’s well-known cause is a virus named Variola. WHO (World Health Organization) have had a significant hand in smallpox eradication following its global immunization campaign.
![Smallpox Virus](https://www.reliablerxpharmacy.com/blog/wp-content/uploads/2014/06/Acne-1.jpg)
Smallpox has been the most devastating diseases in the world. It’s well-known cause is a virus named Variola. WHO (World Health Organization) have had a significant hand in smallpox eradication following its global immunization campaign.