What is the incubation period for smallpox?
The incubation period is seven to 17 days following exposure.

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1. What is smallpox?
2. When was the last case of smallpox reported in the United States?
3. What is the incubation period for smallpox?
4. What are the symptoms of smallpox?
5. How is smallpox spread?
6. Is a smallpox vaccine available?
7. Is there a treatment for smallpox?