27448
This work demonstrates the ability of pH - responsive , endosomolytic nanoparticles to actively promote antigen cross - presentation and augment cellular and humoral immune responses via dual - delivery of protein antigens and CpG ODN .
 Chemical: CpG
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: CpG