| 单词 | OPV |
| 释义 | OPV (extremely rare) n WORD FAMILY OPV USAGE EXAMPLESThe WHO said the use of OPV is being scaled down in a phased manner as countries eliminate circulating wild polio virus strains. Scientific American(Oct 13, 2015) "Most of our infected children are zero-dose - children who have never had OPV drops before," he says. BBC(Jan 17, 2015) Since polio vaccine was developed in the 1950s, efforts to eradicate polio have relied mainly on OPV rather than IPV. US News(Aug 21, 2014) n an oral vaccine (containing live but weakened poliovirus) that is given to provide immunity to poliomyelitis Syn|Hyper Sabin vaccine, TOPV, oral poliovirus vaccine, trivalent live oral poliomyelitis vaccine poliovirus vaccine vaccine prepared from poliovirus to provide immunity to poliomyelitis |
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