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  1. Doctor exposes blood to vaccine, reaction same as when exposed to snake venom

    Doctor exposes blood to vaccine, reaction same as when exposed to snake venom

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  2. Doctor exposes blood to vaccine, reaction same as when exposed to snake venom

    Doctor exposes blood to vaccine, reaction same as when exposed to snake venom

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  3. Doctor exposes blood to vaccine, reaction same as when exposed to snake venom

    Doctor exposes blood to vaccine, reaction same as when exposed to snake venom

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