PINCUS, W B Successful vaccinia infection without a local lesion. [electronic resource] - American journal of public health and the nation's health Jun 1963 - 898-904 p. digital Publication Type: Journal Article ISSN: 0002-9572 Standard No.: 10.2105/ajph.53.6.898 doi Subjects--Topical Terms: HumansVacciniaVaccinia virus