It is not impossible that even bottles of disinfectant can become contaminated with bacteria or fungi. Several cases have been reported over the years, of even powerful antiseptic hand hygiene products harbouring bacteria. The latest of these is of a non-alcoholic hand rub product.

A Quebec company has expanded its recall of cleaning products due to microbial contamination. Avmor Ltd is recalling four more batches of the product X3 Clean Alcohol-Free Foaming Hand Sanitizer.

At the time of the earlier recall, Health Canada said testing showed the sanitizer contains the bacterium Pseudomonas aeruginosa, which poses a serious health risk, particularly to people with weakened immune systems.

The product is contaminated, and removal from use followed by safe disposal will be required.