Paramyxovirus immunity develops through the slow release of dead virus from the oll emulsion vaccine. 副粘病毒的免疫是通过从油乳剂疫苗缓释灭活病毒而产生的。
Since that time, doctors have gotten more skittish about injecting people with a live form of the virus, however, so the subunit approach took precedence. 然而从那时起，医生们就对给人体注射活病毒十分恼火，，所以优先考虑亚单位法。
