High Number of Opioid Overdoses – November 18th, 2021

Windsor (primarily in N9A & N9B postal code areas) & Leamington

Date/Time/Approximate Location

November 18th, 2021

Windsor (primarily in N9A & N9B postal code areas) & Leamington  


Event Description

The Windsor-Essex County Health Unit’s surveillance and monitoring system has identified an increase in opioid-related Emergency Department (ED) visits and Emergency Medical Service (EMS) calls inclusively between November 10th and November 16th of 2021.

Over this consecutive seven-day period, it has been identified that there were fourteen (14) opioid overdoses.  Thirteen (13) of the opioid overdoses were reported by Windsor Regional Hospital, twelve (12) of which involved fentanyl, and one opioid overdose, involving fentanyl was reported by Erie Shores Healthcare. This exceeded our two-year and five-year historical values by three (3) standard deviations. Based on the information available, a public alert is strongly warranted.

Partners involved in the WECOSS, including the WECHU, Windsor Regional Hospital, Essex Windsor-EMS, Erie Shores Healthcare, and Police Services, continue to monitor this increase and are working to understand more about these reported cases.


Please share this information with clients and relevant partners. If you are aware of any linkages between these cases or other causes for these increases, please contact the Windsor-Essex County Health Unit.

For signs and symptoms of opioid overdose and what to do, visit the WECOSS website: How Can Overdose Be Prevented?


WECHU (Acute Care Enhanced Surveillance Application - ACES), Essex-Windsor EMS Overdose Notification System, Windsor Police Services