Dear Editor

Abstract

ndotracheal intubation may be required for every patient under general anesthesia (GA). Direct laryngoscopy is a routine method for endotracheal intubation in patients. Various blades are used for intubation depending on the choice of anesthetist and patient's conditions [1]. These laryngoscope blades can trigger infection among patients [1]. Nowadays it is believed that the standard method for sterilization of laryngoscope blades does not destroy all existing pathogens [2]. Using cheap disposable blades can eliminate the infection risk [2]. The main reason for using the disposable laryngoscope blades is to minimize the risk of infection transmission between the patients. Several cases of prion transfer between patients have been reported after bloo