Public health evaluates the health status of communities to ascertain and prioritize pressing issues. Public health workers push for public policies which help mitigate those problems, and public health workers advocate for the right to good health. The field works to remedy the different standards of medical care applied to various localities around the world, and a large part of public health involves championing for healthcare equity. An integral facet of public health involves working with vulnerable populations and providing care in low-resource areas.