MedPage Today -- SAITAMA, Japan, March 10 -- A live attenuated tissue-cultured smallpox vaccine -- first used in children in the 1970s -- is safe and immunogenic in adults, researchers here said.
MedPage Today -- SAITAMA, Japan, March 10 -- A live attenuated tissue-cultured smallpox vaccine -- first used in children in the 1970s -- is safe and immunogenic in adults, researchers here said.