Smallpox Transmission Risks: How Bad?

It is argued that smallpox transmission primarily occurs after several hours spent in close contact with the index patient (i.e., the first infected patient in an outbreak).

Abstract

Martin Enserink's article “how devastating would a smallpox attack really be?” (News Focus, 31 May, p. [1592][1]) asserts that smallpox transmission primarily occurs after several hours spent in close contact with the index patient (i.e., the first infected patient in an outbreak). Although this