Letting a sick baby die is not abortion. However, it would be immoral to let the baby die.
This is, in fact, one of the reasons I think we need socialized health care. Right now we have a hodge podge of laws that achieve care for the poor in an extremely expensive and inefficient manner. It would be better if we had a coherent scheme that could actually bring costs down, causing everyone to pay less (whether its taxes or private payments, it's still money out of your pocket). The short sightedness of people amazes me.
(disclaimer: I do understand that certain people have a problem with it based on their idea of rights and responsibilities of society and individuals, that at least makes sense.)