It has long been my contention that one of the chief symptoms of the age of constraints we have now entered would be the decline of public health systems globally. This comes at a time when our vulnerability to a worldwide epidemic is increasing because of widespread international travel, the proliferation of densely populated megacities and the general trend toward urban living. Of course, urban environments are ideal for spreading disease because of the proximity of the residents.
The sudden re-emergence of the deadly Ebola virus is testing whether public health systems are adequate to the job of containing such threats. While we know that there is a link between the general health of a population and public health expenditures, it is difficult to find statistics on expenditures worldwide by country to assess the direction of public health spending. We do have evidence that declining health spending in Greece in the aftermath of the financial crisis there was followed by demonstrably worse outcomes. And, the medical community thinks the United States is spending too little on public health, just $251 per person (in 2012). Keep in mind that this is distinct from spending on medical care which totaled $8,086 per person.
So let's be clear; public health refers to the following according the American Heritage Dictionary:
The science and practice of protecting and improving the health of a community, as by preventive medicine, health education, control of communicable diseases, application of sanitary measures, and monitoring of environmental hazards.