More details on why it’s ridiculous to say infant mortality rates in Cuba are better than those in the United States:

The primary reason Cuba has a lower infant mortality rate than the United States is that the United States is a world leader in an odd category — the percentage of infants who die on their birthday. In any given year in the United States anywhere from 30-40 percent of infants die before they are even a day old.
Why? Because the United States also easily has the most intensive system of emergency intervention to keep low birth weight and premature infants alive in the world. The United States is, for example, one of only a handful countries that keeps detailed statistics on early fetal mortality — the survival rate of infants who are born as early as the 20th week of gestation.

For more, read this whole article by Brian Carnell.