Eric Walker added How Data Became One of the Most Powerful Tools to Fight an Epidemic - The New York Times to a number of topics
Eric Walker added John Snow, William Farr and Google Flu Trends and a number of links to Epidemiology, and added Epidemiology to Public health
Eric Walker added a number of topics and a number of links to United States Centers for Disease Control and Prevention (CDC), and added United States Centers for Disease Control and Prevention (CDC) to Branches and agencies of the United States government and Government, politics and healthcare in the United States
Eric Walker added a number of topics and a number of links to Google, and added Google to Technology giants, Alphabet and FAANG