Assertion: smallpox's incubation period | /r/HasProperty | 12 to 14 days
Facets:
value: generally
type: DEGREE
value: according to the mayo clinic
type: OTHER
Source sentences:
text: The incubation period for smallpox is generally 12 to 14 days, which means a person may not show signs of infection for around two weeks, according to the Mayo Clinic.