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Spontaneous sensitization to cross - reacting chemicals in a proportion of control animals is strongly suggested , somewhat akin to spontaneous sensitization in patients with anaphylactoid reactions to neuromuscular blockers on first exposure , and in whom IgE antibodies are detected .
 GENE: IgE antibodies
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: IgE antibodies