Ministry of Health NZ
The great positive impact of public health programs is widely acknowledged. Due in part to the policies and actions developed through public health, the 20th century registered a decrease in the mortality rates for infants and children and a continual increase in life expectancy in most parts of the world. For example, it is estimated that life expectancy has increased for Americans by thirty years since 1900, and worldwide by six years since 1990.
Public health has many sub-fields, but typically includes the interdisciplinary categories of epidemiology, biostatistics and health services.
The high dependency of the national pharmaceutical industry on…