Final answer:
Smallpox is a highly contagious disease that causes a variety of symptoms, including fever, rash, and respiratory distress. It was eradicated in 1977 through vaccination efforts.
Step-by-step explanation:
Smallpox: Symptoms and Spread
As smallpox develops, it causes symptoms such as fever, headache, chills, vomiting, diarrhea, rash, and muscular pain. In severe cases, it can lead to jaundice, pulmonary hemorrhaging, and meningitis. Smallpox is spread through inhalation of viral particles shed from lesions in the throat and can be fatal. Smallpox was eradicated from the general population in 1977 through worldwide vaccination efforts.