What are some examples of what public health professionals do?

They work in labs to determine what causes certain diseases and to develop vaccines to protect us from them.  They educate people how to eat more nutritious foods, protect their children from toxic substances, and avoid safety hazards.  They analyze data to better understand how infectious diseases are spread.  They manage health care clinics and nursing homes.  They work for government agencies that monitor the quality of the air we breathe and the water we drink.  They study soil and food samples to uncover health hazards. They work with firefighters, police, hospitals, and emergency specialists to develop plans and strategies to prevent and mitigate manmade and natural disasters. They develop policies that affect how we access health care services.