Despite a 13% drop in the national infant mortality rate over nearly a decade, there remains a stubborn gap between the rates for black Americans and other racial groups as well as between some Southern states and the rest of the country.

The most proven and promising way to reduce the disparities in premature births that lead to death — home visits by nurses — got a boost in the Affordable Care Act, but is reaching only a fraction of those in need, policy experts say.

Read about it here.