6484
Against 200 strains of methicillin - resistant Staphylococcus aureus ( MRSA ) isolated from 1990 to 1991 , minimum inhibitory concentrations ( MICs ) of a total of 15 antibacterial agents including arbekacin ( ABK ) were determined .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None