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PV
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PV
Encyclopedia
医学
脊髓灰质炎病毒
释
poliovirus; PV
脊髓灰质炎病毒
小RNA病毒科肠道病毒属的一种丙型肠道病毒。单股正链RNA病毒。仅感染人类,是脊髓灰质炎(poliomyelitis)的病原体。有3个血清型(Ⅰ~Ⅲ),各型间无交叉反应。脊髓灰质炎曾是一种广泛传播的急性传染病。常累及中枢神经系统,损害脊髓前角运动神经细胞,导致肢体松弛性麻痹;多见于儿童,弛缓性肢体麻痹可持续终身,故又称小儿麻痹症后遗症(infantile paralysis)。
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