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Public Health

public health

Public health is community health that protects safety and improves the health of communities through education, policy making and research for prevention of disease and injury. 

Public health includes many fields as for example medicine, food & nutrition, social work, environmental sciences, health education, health services administration and the behavioral sciences that focus on entire populations in individual patient care.

What is Public Health?

Public health is the study of health that is related to health, medicine, disease concerned with the whole community. So, it is also known as community health. Health care is important to all of us sometimes but public health is important to all of us all times. So, Public health is so important to the community and all classes of people are suffering from health related problems.

Public Health
Public Health

Public Health Functions

Public healths are mainly three functions are:

  • To monitor the health of people at risk to identify health Issues.
  • Public policies are designed for formulation to solve identified locally and nationally health issues.
  • To assure all populations have cost-effective care that includes health promotion and disease prevention services and evaluation of the effectiveness to care.

Applications of Public Health

  • Medicine
  • Physiology
  • psychology
  • Education
  • Psychology
  • Biology
  • Anthropology
  • Public policy
  • Sociology

Fields of Public Health

  • Health inspectors
  • Health educators
  • First responders
  • Nutritionists
  • Scientists and researchers
  • Restaurant inspectors
  • Community planners
  • Social workers
  • Public health physicians
  • Public health nurses
  • Occupational health and safety professionals
  • Public policy makers

Public Health Nutrition

Public health nutrition is the promotion of good health that prevents nutrition related illness in the people. It solves nutrition related public health situations and problems around the world. Public health is the health promotion of nutrition in disease prevention and the application of research to identify practical solutions.

Public Health Nutrition
Public Health Nutrition

Public Health for Disease Control and Prevention

Infectious Diseases

Infectious diseases are controlled through drinking clean water and improved sanitation. Once upon a time, Infections such as typhoid and cholera transmitted by contaminated water that were the main cause of illness and deaths have been reduced dramatically by improved sanitation. Antimicrobial therapies are changes of the world and have been critical to successful public health efforts to control infections such as tuberculosis and sexually transmitted diseases.

Public Health for Disease Control and Prevention
Public Health for Disease Control and Prevention


Vaccination is very important to life saving medicine that eradicates smallpox and control of measles, rubella, tetanus, diphtheria, hepatitis B and other infectious diseases of the world.

Mental health

Mental health is a large problem that increases the burden of disease worldwide. Prevention of healthcare facilities are important public health issues.

Heart Disease and Stroke

Heart disease and stroke are risk-factors such as smoking cessation and blood pressure control with detection and better treatment.

Heart Disease and Stroke
Heart Disease and Stroke

Food Safety and Health

Food safety decreases in microbial contamination and increases in nutritional content of foods. Essential micronutrients and food fortification programs eliminate major nutritional deficiency diseases such as rickets, goiter and pellagra of the world.

Mother and Child Health

Mother and child are needed for better hygiene and nutrition, antibiotics, health care and technological advances in maternal and child medicine.

Family Planning

Family planning is very important to the social and economic roles of women. It is providing health benefits such as smaller family size and longer family size between the birth of children that decreased death rate for infant, child and maternal women and use to prevent pregnancy and transmission of human immunodeficiency virus and other sexually transmitted diseases.

Family Planning
Family Planning

Motor Vehicle

Motor vehicles are safe for improving personal behavior such as safety belts, child safety seats, motorcycle helmets are increased carefully and drinking & driving are decreased safety issues. It can contribute to reduction in motor vehicle related deaths.


Workplaces are big issues in health problems such as coal workers are common diseases in pneumoconiosis and silicosis that cannot control it. Fatal injuries and deaths related to mining, manufacturing, construction, and transportation also have decreased.

Drinking Water

Drinking water is a process of fluoridation that can safely both children and adults by preventing tooth decay and regardless of socio economic status. Fluoridation is provided a vital role can reduce tooth decay and tooth loss in adults.

Health Hazard

Health hazards for tobacco uses and public health anti-smoking campaigns are changes in society to prevent initiation of tobacco use and reduce environmental tobacco smoke.

Health Hazard
Health Hazard

Public Health for Professional Services

Public health professional are trained to perform one or more of essential services:

  • To monitoring the community health to identify potential problems
  • To investigate in the community to health problems and hazards
  • Health related people are solved in health issues that particularly reduce at risk
  • Community mobilization to identify and solve health problems
  • To development policy and plans that support to community health
  • To enforcement laws and regulations that protect to health safety issue
  • To needed personal health services and ensure the provision of health care for people
  • To ensure public health services and personal health care
  • To evaluate effectiveness of personal health care and population based health services
  • Researcher can give in creative new ideas and innovative solutions to health problems

Public Health for Preparedness Planning

Preparedness community is development, maintenance and use to preparedness plan having the following components:

Public Health Preparedness
Public Health Preparedness
  • To responsibilities of access to policy in all private and government sectors.
  • To educate, engaged and mobilized participants are needed in public health to emergency policy.
  • To identify the hazards and vulnerabilities of planning.
  • To identify issues to effectively monitor and prevent a public health emergency.
  • To maintain and improve to monitor, detect, and investigate potential hazards.
  • To maintain and improve the systems to test for potential hazards.
  • To develop and improve the capability to provide health care services.
  • To develop, practice and improve the capability of public health.

Public Health and COVID-19

COVID-19 pandemic has the importance of investing in public health infrastructure and public health systems. It is a lack of testing capabilities and poor healthcare to the risk of societies for the virus access. Public health is important to virtual check-ins, telemedicine and tele therapy can be used to build and maintain connections.

Public Health and COVID 19


Public health is a vital role in many fields that helps to health related issues and solving many problems. Public health issues are health problems of the world that insure the risk of health communities. Large community health can be ensured to the health sector at dramatically and small community health is ensured to health as primary levels. However, all the people ensure that health care is on all sides.







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