12:44 What is Public Health? Crash Course Public Health #1 5:41 What is public health? 4:07 What is Public Health? Episode 1 of \"That's Public Health\" 3:08 What is public health? 3:31 U.S. Polls & Public Health: Role of Indian Doctors 8:15 An Introduction to Surveillance - The Eyes and Ears of Public Health 8:30 Education Nationale 3:12 What is Public Health? 4:06 What to expect from a Master of Public Health degree. Why do an MPH? 2:18 Public Health 1:36 What is public health? 3:10 Why Public Health? 12:42 How Your Biology Affects Your Health: Crash Course Public Health #2 2:24 Public Health: a Return on Investment