"Harry Potter and the Multitudinous Maladies": a retrospective population-based observational study of morbidity and mortality among witches and wizards.

Morbidity and, in particular, mortality were very high and predominantly caused by magical means. Further investigation into the safety at Hogwarts School of Witchcraft and Wizardry is warranted. The few treatments used had high success rates; rapid recovery was the rule, and hospital stays generally brief. Efforts should be undertaken to identify the magical therapies and interventions used and to introduce these novel remedies into Muggle medicine.