The preventorium, which accommodated pre-tuberculosis children, dates back to 1933.The Lamorthe-Guidi family housed over 50 children who were in good health, including the sons and daughters of Resistance fighters and Jews, hiding them among the sick patients. On July 22, 1944, the Germans wanted to search the premises. Anne Wahl was a nurse who spoke their language, and she made the soldiers afraid that they would be infected so they would not visit all the rooms and nobody would be arrested.