3491
In vitro addition of purified C3 to patient serum restored hemolytic complement to normal levels , and plasma infusion during each of four episodes of pneumonia significantly enhanced serum opsonic activity for as long as 36 hours .
 Disease: pneumonia
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
 Entities: pneumonia 
Answer:
 Disease: pneumonia