Unverified90% confidenceDecision RuleTime unknown
疫苗全程必须2-8℃冷链保存，冻结（0℃以下）会破坏活疫苗效价使其失效；购买时应确认商家有冷链运输记录，避免网购点对点非冷链配送的疫苗
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Unverified购买时若疫苗未全程冷链（2-8℃）保存、包装无冰袋或到手温热，应拒绝接种，脱冷疫苗弱毒株失活会导致免疫无效91% similarUnverified口服减毒活疫苗需2-8℃冷藏保存，脱离冷链会失效，购买后须尽快冷藏并按规定温度携带服用；无法保证家庭冷链条件者应选注射型88% similarUnverified口服霍乱疫苗需2-8℃冷藏保存，不可冷冻；缓冲液需室温或凉水冲兑，全程冷链是选择正规接种点的核心判据82% similarUnverified存放需严格2-8℃的疫苗/生物制剂不建议买半导体制冷小冰箱，其温度漂移和高温环境下的制冷不足会导致药品失效79% similarUnverified医用冷链（疫苗）常用的相变冰袋按温区分类：2~8℃疫苗用相变温度约4℃的PCM，冷冻型药品用-15℃以下PCM，普通家用冰袋无法替代医用蓄冷剂72% similar
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