Medical aid and emergency evacuation

Hi All

My family and I are moving to Tofo, Inhambane soon. I would like to know which international medical aids are the best? We are moving from South Africa.

I have heard about the emergency evacuation, but I wonder what qualifies as an emergency?

We will be moving with our daughters, age 1 and 2. As they are very young, health and medical aid are very important to us. Any advice would be appreciated. Thanks!