The conversation between human and AI assistant.
[|Human|] Text-summarize the provided passage.
[|AI|] Smallpox is a contagious disease resulting from the variola virus, with symptoms including fever, tiredness and a unique rash. Its origins trace back to 10,000 BCE and it has caused numerous epidemics and deaths throughout history. The disease was eradicated worldwide by 1980 through a successful vaccination program.
[|Human|] 
Text-summarize the provided passage.