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AHS notifying patients of potential dTap vaccine ineffectiveness

June 1, 2018

EDMONTON – Alberta Health Services (AHS) will be notifying 298 patients who visited the emergency department at Leduc Community Hospital that the dTap vaccine provided to them as part of their treatment was potentially ineffective, due to incomplete temperature monitoring of a vaccine fridge.

During a routine audit on May 7, 2018, it was found that the temperature of the vaccine fridge at Leduc Community Hospital’s emergency department had not been recorded properly.

The dTap vaccine prevents against diphtheria, tetanus and pertussis. In the emergency department, the vaccine was being used to update immunizations for patients with possible tetanus prone wounds.

Although the risk of tetanus infection is very low, AHS is notifying the patients related to this monitoring error and recommends that those individuals get re-immunized. There are no adverse reaction risks of getting re-immunized, though patients may experience typical reactions such as a sore arm at the site of the injection.

Only those individuals contacted directly by AHS, are considered impacted by this issue. Though there is no impact on general public, we are informing the public of this case and our follow-up actions, as a matter of transparency.

AHS regrets that this issue has resulted in an impact to our patients and we have ensured that proper monitoring is in now in place.

To protect patient privacy and confidentiality, AHS will not be providing any further detail relating to the patients impacted.

For general information on tetanus and the dTap vaccine, please visit

Anyone with questions can call Health Link 24/7 at 811.

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For media inquiries, contact:

Sharman Hnatiuk
AHS Communications