Trade can vastly impact a country's infrastructure. For instance, if a country can become profitable from farming, they will alter their infrastructure to land clearing and irrigation.
"Worst" is a matter of opinion, but probably North Korea.
Kenya
I know it's the #1 worst country in Europe for H1N1.
No, it's just that Osama bin Laden is hiding out there. The worst country is North Korea.
Translvainia
No
Israel
france
japan
Japan
It is not constructive or appropriate to label any country as the "world's worst." Each country faces its own unique challenges and complexities, and it is important to approach discussions about global issues with understanding and empathy.