Collins Chinese Dictionary Plus (3rd edition), 2011:
vaccination [væksɪˈneɪʃən]
n
1
[u]
(=immunization) 疫苗接种(種) yìmiáo jiēzhòng
2
[c]
(=injection) 预(預)防针(針) yùfángzhēn
- a vaccination against smallpox/tetanus
天花疫苗接种(種)/破伤(傷)风(風)预(預)防针(針) tiānhuā yìmiáo jiēzhòng/pòshāngfēng yùfángzhēn