Pierre Charles Alexandre Louis

Pierre-Charles-Alexandre Louis
Drawing of Pierre-Charles-Alexandre from Fielding Hudson Garrison's An introduction to the history of medicine
Born(1787-04-14)14 April 1787
Died22 August 1872(1872-08-22) (aged 85)
Resting placeMontparnasse
NationalityFrench
CitizenshipFrench
Known forDevelopment of the "numerical method", precursor to epidemiology and the modern clinical trial
Scientific career
FieldsMedicine, pathology, epidemiology
InstitutionsHôtel-Dieu de Paris, Pitié-Salpêtrière Hospital
Doctoral studentsVictor Gautier

Pierre-Charles-Alexandre Louis (14 April 1787  22 August 1872) was a French physician, clinician and pathologist known for his studies on tuberculosis, typhoid fever, and pneumonia, but Louis's greatest contribution to medicine was the development of the "numerical method", forerunner to epidemiology and the modern clinical trial, paving the path for evidence-based medicine.