'We can't take our health for granted' as US reopens, says Dr. Howard Koh

Amid a public health emergency, there is usually a great deal of interest in prevention and preparedness, but over the years, these waves of interest in public health wane. Dr. Howard Koh of Harvard's Harvard T.H. Chan School of Public Health and the Harvard Kennedy School urges continued investment in public health care systems at every level, from local to federal.