The Globe and Mail reports in its Saturday, Feb. 11, edition that University of Wisconsin-Madison toxicologist Warren Porter says patients are not being given accurate information on the risks associated with a banned pesticide thousands of people may have consumed. The Globe's Grant Robertson writes that Mettrum and Organigram have sent messages to customers over the past two months informing them that products they had purchased were being recalled because of the presence of banned pesticides, including myclobutanil. A letter to Mettrum's clients said, "Rest assured, this material is not deemed to present a health risk." Organigram informed clients that "the probability of serious adverse health consequences is remote," while Health Canada has referred to the amounts of banned pesticide detected as "trace amounts" that are "low risk." Dr. Porter says: "Ultra-low doses can have all kinds of biological effects, especially over longer periods of exposure. So when these companies say 'Oh, there's no problem,' the first thing I would ask them is have you looked at the effects on the nervous system, the endocrine system, the immune system and epigenetics?"