Term: serum sickness: a delayed allergic reaction to the injection of an antiserum caused by an antibody reaction to an antigen in the donor serum
Broader: hypersensitivity reaction: an inappropriate and excessive reaction to an allergen (as pollen or dust or animal hair or certain foods); severity ranges from mild allergy to severe systemic reactions leading to anaphylactic shock | Unrelated: heliobacter pylori: the type species of genus Heliobacter; produces urease and is associated with several gastroduodenal diseases (including gastritis and gastric ulcers and duodenal ulcers and other peptic ulcers)
Broader: hypersensitivity reaction: an inappropriate and excessive reaction to an allergen (as pollen or dust or animal hair or certain foods); severity ranges from mild allergy to severe systemic reactions leading to anaphylactic shock | Unrelated: phatic speech: conversational speech used to communicate sociability more than information
Broader: hypersensitivity reaction: an inappropriate and excessive reaction to an allergen (as pollen or dust or animal hair or certain foods); severity ranges from mild allergy to severe systemic reactions leading to anaphylactic shock | Unrelated: seam: joint consisting of a line formed by joining two pieces
Broader: hypersensitivity reaction: an inappropriate and excessive reaction to an allergen (as pollen or dust or animal hair or certain foods); severity ranges from mild allergy to severe systemic reactions leading to anaphylactic shock | Unrelated: hinayanism: the religious doctrine of Hinayana Buddhism
Broader: hypersensitivity reaction: an inappropriate and excessive reaction to an allergen (as pollen or dust or animal hair or certain foods); severity ranges from mild allergy to severe systemic reactions leading to anaphylactic shock | Unrelated: obsolescence: the process of becoming obsolete; falling into disuse or becoming out of date
Broader: hypersensitivity reaction: an inappropriate and excessive reaction to an allergen (as pollen or dust or animal hair or certain foods); severity ranges from mild allergy to severe systemic reactions leading to anaphylactic shock | Unrelated: rorqual: any of several baleen whales of the family Balaenopteridae having longitudinal grooves on the throat and a small pointed dorsal fin
Broader: hypersensitivity reaction: an inappropriate and excessive reaction to an allergen (as pollen or dust or animal hair or certain foods); severity ranges from mild allergy to severe systemic reactions leading to anaphylactic shock | Unrelated: swaddling clothes: a garment (a gown or narrow strips of cloth) for an infant
Broader: hypersensitivity reaction: an inappropriate and excessive reaction to an allergen (as pollen or dust or animal hair or certain foods); severity ranges from mild allergy to severe systemic reactions leading to anaphylactic shock | Unrelated: high gear: a forward gear with a gear ratio that gives the greatest vehicle velocity for a given engine speed