1. Match the following.-released by mast cells, causes vasodilation and increases vascular permeability-released by leukocytes, causes pain, fever and muscle spasms-the ability to protect oneself from disease-overreactive immune systemA.immunocompetenceB.autoimmunityC.interleukinsD.prostaglandinsE.immunosuppressionF.hypersensitivityG.histamine2. Which conditions increase the risk of severe COVID-19 illness? Select all that apply.A. SexB. AgeC. AllergiesD. ComrbiditiesE. Demographics

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