A report released in December 2019 by a national anti-Amazon coalition called Athena has found 'alarmingly high' injury rates faced by workers at Amazon fulfillment centers across the USA. The report's authors say the findings - based on Amazon's own internal data - also show that injuries faced by its warehouse workers rise sharply during peak holiday seasons, due to pressures created by the logistics of fulfilling express delivery orders. 

Amazon has refuted the report findings and criticised its authors. Company comments can be found in the article linked below.