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Public health, together with primary care, secondary care, and tertiary care, is part of a country's overall health care system. Many interventions of public health interest are delivered outside of health facilities, such as food safety surveillance, distribution of condoms and needle-exchange programs for the prevention of transmissible diseases.
A health system, health care system or healthcare system is an organization of people, institutions, and resources that delivers health care services to meet the health needs of target populations. There is a wide variety of health systems around the world, with as many histories and organizational structures as there are countries.
The following outline is provided as an overview of and topical guide to public health: . Public health has been defined as "the science and art of preventing disease", prolonging life and improving quality of life through organized efforts and informed choices of society, organizations (public and private), communities and individuals.
In the early 20th century, advances in medical technology and a focus on public health contributed to a shift in healthcare. [16] The American Medical Association (AMA) worked to standardize medical education, and the introduction of employer-sponsored insurance plans marked the beginning of the modern health insurance system. [17]
In the area of environmental protection and public health, a Public Health Service 1969 community water survey that looked at more than a thousand drinking water systems across the United States drew two important conclusions that supported a growing demand for stronger protections that were adopted in the 1974 Safe Drinking Water Act. The ...
Sexually transmitted infections (STIs) remain a major public health challenge in the United States. CDC estimates that there are approximately 19 million new STIs yearly. The country experienced a reduction in reported STIs early in the COVID-19 pandemic, likely due to reduction in care devoted to them, but rates have rebounded in ensuing years. [18]
Chile has maintained a dual health care system in which its citizens can voluntarily opt for coverage by either the public National Health Insurance Fund or any of the country's private health insurance companies. 68% of the population is covered by the public fund and 18% by private companies. The remaining 14% is covered by other not-for ...
For example, California's Public Health Care Systems are only 6% of the hospitals in the state, yet provide care for 38% of all hospital care of uninsured in California- 123,000 of which are homeless, and 3.6 million of which live below the federal poverty line. [17]