Answer:
Trade ban
Step-by-step explanation:
Not allowing any poultry to be imported in the country is a typical example of a trade ban. Now it is not a complete trade ban, or focused toward a specific nations, but it is a ban for only a certain product without taking in consideration from where it originates. This move has been made in order to protect the citizens of the avian flu, as it is a disease that easily spreads and causes epidemic, thus it can make a lot of damage in a nation like China where the majority of the population is concentrated in only one area.