The burden of health disparities continues to affect disproportionately which population (s) ?

The correct answer to this is the:

"minority populations"

For example in America, white Americans are the racial majority while African Americans and Latinos are the minority. Despite improvement in overall health for the majority of the people, the burden of health disparities always affect the minority populations. The slight difference in race gives a very large advantage to white Americans in terms of health benefits, insurance and health facilities available.