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As reflections by the recipient for the Japanese society for vaccinology Takahashi award, clinicopathologic understanding and control of varicella-zoster virus (VZV) infection was briefly reviewed. In 1974, a live varicella vaccine was developed by attenuating the Oka strain of VZV after the passages in non-human cells at a low temperature. The vaccine was immunogenic, well tolerated, and effective,...
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