Which of the following statements would explain why some countries had extremely high death counts related to the highly contagious H1N1 influenza while others experienced few to no deaths?


Countries with low levels of international migrants were the most affected.

Countries with high levels of international migrants were the most affected.

Countries that are land-locked were the most affected.

Countries that experience high levels of international trade were the least affected.

Countries with the highest populations were the least affected.