What follows is the current totality of the body of evidence (available comparative studies and high-level pieces of evidence, reporting, and discussion) on COVID-19 lockdowns, masks, school closures, and mask mandates. There is no conclusive evidence supporting claims that any of these restrictive measures worked to reduce viral transmission or deaths. Lockdowns were ineffective, school closures were ineffective, mask mandates were ineffective, and masks themselves were and are ineffective and harmful.