3495
Blockade of histamine H1 receptors may reduce mortality in pertussis immunization - induced encephalopathy in mice .
 Chemical: histamine; Disease: pertussis; Disease: encephalopathy
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: histamine; Disease: pertussis; Disease: encephalopathy