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LIVE POLIO IRUS VACCINES

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74<br />

Safety-Laboratory Evidence of Attenuation and Safety<br />

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FrI. 6.<br />

Cox's Type 2 (intraspinal inoculation), lumbar<br />

reactions, neuronal lesions.<br />

cord.<br />

Inflammatory<br />

FIG. 7. Cox's Type 2 (intraspinal inoculation), cervical cord. Perivascular and<br />

focal infiltrative lesions and neuronal lesions in the anterior horn.

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