Health services consist of medical professionals, organizations, and ancillary health care workers who provide medical care to those in need. Health services serve patients, families, communities, and populations. They cover emergency, preventative, rehabilitative, long-term, hospital, diagnostic, primary, palliative, and home care. These services are centered around making health care accessible, high quality, and patient-centered. Many different types of care and providers are necessary in order to offer successful health services.
Sanitation refers to public health conditions related to clean drinking water and adequate treatment and disposal of human excreta and sewage. Sanitation systems aim to protect human health by providing a clean environment that will stop the transmission of disease, especially through the fecal–oral route.
Health care resources are defined as all materials, personnel, facilities, funds, and anything else that can be used for providing health care services. Health care has long been a limited resource for which there has been an unlimited demand; everyone needs health care.