In april 2009, a new strain of influenza a emerged. this strain, known as the swine flu, caused at least 95 deaths in over 40 different countries. the rapid spread of this disease can be attributed to what?

The answer is ALL OF THESE

Explanation:

In April 2009, a new strain of influenza A emerged. This strain, known as the swine flu, caused at least 95 deaths in over 40 different countries. The rapid spread of this disease can be attributed to

is this for the e2020 class

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

here is your answer hope i .