| 词汇 | booster-shot |
| 释义 | booster shot noun[ C ] mainly USuk /ˈbuː.stə ˌʃɒt/ us /ˈbuː.stɚ ˌʃɑːt/(UK usuallybooster) an injection of a small amount of a substance, especially a vaccine, that is given to increase the effect of the same substance that was given some time before, to continue to protect a person from illness: Children should be vaccinated at a year old, with a booster shot given around the time the child starts pre-school. I had a tetanus booster shot one month before the trip. However, immunity wanes within several years, and booster shots have not been routine. One disadvantage is that the vaccine requires annual booster shots. People up to the age of 64 can get booster shots from their doctor. Immunology & vaccination active immunity ANA anti-vax antibody antigen antigenic antinuclear antibody herd immunity immune response immunity immunization immunocompromised immunosuppressed inoculation lymph unimmunized uninoculated unvaccinated vaccinated vaccination |
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