Public Health Definition
Public health is typically divided into epidemiology, biostatistics and health services. Environmental, social, behavioral, and occupational health are also important subfields. The focus of public health intervention is to prevent rather than treat a disease through surveillance of cases and the promotion of healthy behaviors.
Other public health interventions include latrinization, the building of sewers, the regular collection of garbage followed by incineration or disposal in a landfill, providing clean water and draining standing water to prevent the breeding of mosquitos.
In Modern public health As the prevalence of infectious diseases in the developed world decreased through the 20th century, public health began to put more focus on chronic diseases such as cancer and heart disease. An emphasis on physical exercise was reintroduced. vaccination programs and control of infectious diseases, effective safety policies such as motor-vehicle and occupational safety, improved family planning, fluoridation of drinking water, anti-smoking measures, and programs designed to decrease chronic disease malnutrition and poverty, increase of HIV-AIDS and childhood obesity. In modern public health other an Public hygiene, which includes public behaviors individuals can take to improve their personal health and wellness