| ordinary smallpox |
the most common variety of smallpox, in which after an incubation period and a prodrome of high fever, chills, myalgia, and malaise, petechial reddish spots appear on the oral mucosa followed by a raised macular cutaneous rash that usually starts on the forehead and spreads to become generalized. ...
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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