Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
Since the winter of 1955, a very severe outbreak of a highly contagious disease has destroyed thousands of dogs in France. It was determined that the disease had originated in Normandy and from there it spread to the English Channel and then to the Paris suburbs. Afterwards, similar cases were diagnosed in many parts of France.
Fontsine, M.; Goret, P.; and Brion, A.
"Contagious Rhino-Tonsillitis (C.R.T.): A New Virus Entity Unrelated To Other Infectious Diseases In The Dog,"
Iowa State University Veterinarian: Vol. 27
, Article 7.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol27/iss2/7