Diphtheria-Tetanus-Poliovirus vaccine Diphtheria-Tetanus-Poliovirus vaccine foreign to USA https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3166496/ vaccine This term was used by the USA VAERS system to indicate the source, which is foreign to USA here, of the vaccine. A Diphtheria-Tetanus-Poliovirus vaccine manufactured outside of the U.S. Oliver He Kallan Roan vaccine foreign to USA licensed human clostridium tetani vaccine licensed human orynebacterium diphtheriae vaccine licensed human poliovirus vaccine