单词	revaccinate
释义	revaccinate /riːˈvaksɪneɪt / verb [with object] Vaccinate again for the same disease: high-risk individuals should be revaccinated every three to five years... We have to say to parents, ‘There is a possibility the vaccine your child had did not work and we recommend your child is revaccinated with the MMR vaccine’. Persons at high risk who were vaccinated before travel during the previous season should be revaccinated with the current vaccine in the following fall or winter. High-risk children who were vaccinated when they were younger than four years should be revaccinated after two to three years if they are still at a high risk. Derivatives revaccination /riːvaksɪˈneɪʃ(ə)n/ noun ... As I had been vaccinated in infancy, I did not require revaccination, but my mother knew that I needed a red ribbon like everyone else so, as a wise parent, she put one on my arm. Two to three punctures are recommended for primary vaccination; 15 punctures are recommended for revaccination. Children can achieve or re-achieve detectable levels of protective antibodies after revaccination during combination antiretroviral treatment.
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