immediate hypersensitivity

noun

plural immediate hypersensitivities
: hypersensitivity in which exposure to an antigen produces an immediate or almost immediate reaction

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“Immediate hypersensitivity.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/immediate%20hypersensitivity. Accessed 2 Feb. 2023.

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