| 单词 | ring vaccination |
| 释义 | ring vaccination (extremely rare) n WORD FAMILY ring vaccination USAGE EXAMPLESDr. Henderson quickly realized that trying to vaccinate vast populations was futile and switched to “ring vaccination.” New York Times(Aug 21, 2016) It involved a procedure called ring vaccination, in which clusters of people who were particularly at risk were offered the chance to be vaccinated. Economist(Aug 06, 2015) Instead, they opted for a design called ring vaccination, in which only contacts of new Ebola patients, as well as the contacts' contacts, were vaccinated. Science Magazine(Jul 31, 2015) n administering vaccine only to people in close contact with an isolated infected patient; prevents the spread of a highly infectious disease by surrounding the patient with a ring of immunization Hyper inoculating, vaccinating the act of protecting against disease by introducing a vaccine into the body to induce immunity |
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