The need for vaccination of those handling vaccinia and other related orthopoxviruses is still uncertain, with UK and US authorities adopting different policies. The former revised an earlier decision and now no longer recommend vaccination; the latter confirmed earlier decisions to recommend vaccination. These policies are reviewed in the light of evidence on the safety and efficacy of smallpox vaccine. © 1993.
Baxby. (1993). Indications for smallpox vaccination: policies still differ. Vaccine, 11(4), 395–396. https://doi.org/10.1016/0264-410X(93)90277-5