Under the Canada Consumer Product Safety Act, teether fillings must not contain any living micro-organisms. Health Canada's sampling and evaluation program found some samples that were contaminated with the bacteria Bacillus cereus . These bacteria generally do not cause illness in healthy individuals. However, the bacteria can affect children with weakened immune systems, causing stomach pain, vomiting and diarrhea, if the teether is punctured and the liquid filling is ingested. As of November 23, 2022 the company has received no reports of incident or injury in Canada.