Type I (Anaphylactic)Reactions 。Involve IgE antibodies 。Localized:Hives Mast cell or Granule or asthma from basophil contact or inhaled antigens Systemic:Shock Histamine and IgE leukotrienes from ingested or Antigen E洲 injected antigens Figure 19.la • Involve IgE antibodies • Localized: Hives or asthma from contact or inhaled antigens • Systemic: Shock from ingested or injected antigens Type I (Anaphylactic) Reactions Figure 19.1a