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100 Wasp Stings Trigger Rescue in BC
28 Aug
Summary
- A 33-year-old hiker suffered over 100 wasp stings.
- Helicopter rescue was required due to a severe reaction.
- Increased wasp activity is linked to mild winter and early spring.

A dramatic rescue unfolded on Tuesday when a 33-year-old hiker and her climbing partner were airlifted from the British Columbia backcountry. The pair, who had been climbing near the Redoubt Wall north of Vancouver, were descending a trail when one woman stepped on a wasp nest.
The hiker sustained over 100 wasp stings, experiencing a severe allergic reaction. Rescuers administered antihistamines, and a helicopter from North Shore Rescue was called in for the extraction. While this hiker did not require an EpiPen, experts emphasize their importance for backcountry enthusiasts.
This incident highlights a concerning trend, as it marks the second helicopter rescue this year in the area due to wasp swarms. In late July, another hiker was stung over 20 times near Elsay Lake, necessitating a similar aerial rescue. Lions Bay Search and Rescue has noted a significant increase in wasp activity, attributed to a mild winter and an early spring.
Wasp activity typically peaks in August and September. Unlike bees, wasps can sting multiple times. To mitigate risks, hikers are advised to wear protective clothing and to flee immediately if attacked, as wasps may pursue.