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| 单词 | revaccination |
| 释义 | revaccinationnoun re·vac·ci·na·tion (ˌ)rē-ˌvak-sə-ˈnā-shən plural revaccinations : the act of administering a vaccine again some period after an initial vaccination especially to strengthen or renew the immune response The first vaccination is given after a cat is 16 weeks old. Thereafter, annual revaccination with a single dose is necessary for effective immunity. Revaccination produces protective antibody titers in only 18 to 25 percent of individuals who failed to respond to the initial immunization with hepatitis B vaccine. revaccinate (ˌ)rē-ˈvak-sə-ˌnāt transitive verb revaccinated; revaccinating Make sure all dogs are vaccinated, and revaccinated if the immunization is more than two years old. Therefore, if a cat's rabies vaccination expires anytime before April 1, 2017, the pet must be revaccinated prior to a 2016 cat license tag being issued. |
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