90472
In February 2004 , avian influenza virus was detected in birds in Vietnam , increasing fears of the emergence of new variant strains .
 disease: avian influenza; location: Vietnam
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: avian influenza, Vietnam 
Answer:
 disease: avian influenza; location: Vietnam