High Number of Opioid Overdoses – May 4th, 2021

Windsor-Essex County

Date/Time/ Approximate Location

May 4th, 2021

Windsor, Ontario


Event description

The Windsor-Essex County Health Unit’s surveillance and monitoring system has identified an increase in drug-related overdoses between April 30th and May 2nd of 2021. Over this consecutive three-day period, it has been identified that there were eight (8) opioid overdoses, seven (7) of which involved fentanyl. These overdoses occurred primarily in Windsor. As reported for in the last Alert issued on May 1st, there were an additional eight (8) opioid overdoses that occurred between April 26th and April 29th, which combines to a total of 16 opioid overdoses identified in one week. Additionally, between April 30th and May 2nd, there were ten (10) EMS Overdose Notifications flagged by the system. Compared to historical weekly comparisons for the same time period, these indicators surpass our threshold levels for an extreme Alert.

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 & 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