(ˌpəʊstˈvæksɪnəl) adj (Medicine) occurring after a vaccine
postvaccinal
post·vac·ci·nal
(pōst-vak'si-năl), After vaccination.
postvaccinal
(pōst-văk′sĭ-năl) [″ + vaccinus, pert. to cows] Following vaccination; used esp. with reference to safety issues or immune responses that result from immunization.