Jesse, Cuba's infant mortality rate and life expectancy are recorded and reported by the state-run media.
At the current rate of Chavez's nationalization of media, I bet Venezuela will pass Cuba for the lowest infant mortality in 18-24 months.http://www.cnn.com/2007/WORLD/americas/05/28/venezuela.protest/index.html
Of course, even if true (a HUGE concession), it's not uncommon for a communist state to have one sparkling jewel so it can show the world how magnificent it is -- even if the rest of the country rots. Unlike The USSR and North Korea, Cuba hasn't really had to fear a military invasion since the Bay of Pigs and so it isn't suprising that it has sinked its national treasure into healthcare.
Don't get me wrong, I think the U.S. policy toward Cuba sucks. The people suffer, not the rulers. And, Cuba's medical system and disaster preparedness are very impressive. However, don't be fooled into thinking Castro has done his people any favors in the big picture.