ASSESSING KNOWLEDGE, AWARENESS, ATTITUDE, BEHAVIOR OF VIETNAMESE SAILORS OF A / H5N1 FLU EPIDEMIC IN HAI PHONG PORT IN 2015 We proceeded to survey 420 Vietnamese seamen at Hai Phong port regarding awareness, behavior, attitude to prevent the transmisison of A H5N1 flu epidemic, the result as follows: 14.5% of seamen were interviewed did not know the cause of A H5N1 flu.