What things make it more likely to get bird flu?

Close contact. Close contact with animals infected or carrying the particular strain of influenza virus is the usual way of getting infection. It may contact with poultry, ducks and pigs. It is only rarely transmitted from one human to another.
Working with birds. True avian flu can be contracted by working closely with chickens, turkeys and ducks in the food industry. The infected bird can transmit the virus to the human. Some strains aren't able to be transmitted to people.