I think this might help.
Avian influenza (bird flu) has the potential to cause a healthcare crisis of unprecedented
global dimensions. Many predict a global pandemic far worse than the
1918 Spanish Flu, which killed 40 million to 50 million people. A larger, denser
global population, coupled with modern transportation systems of both goods and
people, could result in a pandemic killing far more people worldwide. The consequences
of such a pandemic would stretch beyond just public health. International
relations, commerce, politics, travel, medicine, and economic and social infrastructures
would be affected due to widespread infection and worldwide mitigation
efforts.
Answer:
economic migration
Explanation:
When people move from one country to another we have a migration. If the reasons for that migration is the living conditions, being poor in the country they are from, and want to move in a country with much better ones, it is an example of economic migration. This can also be seen from a push and pull factor perspective, as they are what cause the migration. The poor conditions in the country of origin are push factor that make the people move away. The better conditions in another country are a pull factor, as they attract these people to chose that particular country as their next destination.