The single sentence on vaccination site care in our recent article on Smallpox Vaccination (Vol. 45, page 2) needs clarification. In the past, the vaccination site was generally left uncovered, but current plans for Phase I call for it to be covered with both gauze to absorb liquid and a semipermeable membrane such as an Opsite dressing to prevent spread of the virus. This correction has been made in the web version of the issue.

Because of concerns about the possibility of bioterrorism involving smallpox, the US government is reinstituting smallpox vaccination (https://www.cdc.gov/smallpox/; www.idsociety.org/bt/toc.htm). Vaccination is currently expected to proceed in three phases: the military and hospital smallpox response teams first, other health care workers, police and firefighters second, and the general public in the third phase. Except for the military, vaccination will be voluntary.