This is contact dermatitis, a form of type iv hypersensitivity in which pre-sensitized lymphocytes led to this inflammatory reaction a couple of days after contact with the offending plant material.
图示接触性皮炎，由致敏淋巴细胞引起的IV型超敏反应，在接触致敏性物质几天后出现。
Both type II and type iv immune hypersensitivity reactions contribute to this rejection reaction.
II型和IV型超敏反应促进了排斥反应的发生。
Both type II and type iv immune hypersensitivity reactions contribute to this rejection reaction.
II型和IV型超敏反应促进了排斥反应的发生。
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