TORONTO – The Toraymyxin (PMX) hemoperfusion cartridge developed by Toronto’s Spectral Medical Inc. and used successfully to treat patients during the avian and swine flu pandemics is being eyed to help COVID-19 patients in Canada. Specifically, an emergency interim order from Health Canada expands its use to include treatment of COVID-19 patients with high levels of endotoxin in their blood and in acute respiratory failure.