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Stage 1, scab, slight erythema; stage 2, slight swelling at dose site, scab, slight edema; stage 3, mild-to-moderate edema, scab, swelling, ocular discharge, emesis; stage 4, macroscopic descriptions of swelling and/or firmness in the interscapular implant sites, no expressible fluid; stage 5, slight swelling, emesis, red-tinged material at dose site and yellow discharge; mild edema, mild erythema.
