2024-12-25 00:00 The Invisible Shield (?) The Old Playbook. History repeats itself. It's not the first time the world has had to deal with a pandemic, and the push highlights how the public health sector had to go back to work. Follow the Data. Data has been an essential public health tool since at least the seventeenth century, helping the world understand and mitigate the spread of disease. Inoculation & Inequity. Public health official