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Intubation (sometimes entubation) is a medical procedure involving the insertion of a tube into the body. Patients are generally anesthetized beforehand. Examples include tracheal intubation, and the balloon tamponade with a Sengstaken-Blakemore tube (a tube into the gastrointestinal tract). In 2020, many COVID-19 patients are requiring tracheal intubation, and there have been growing concerns about personal protective equipment and safety.