"Cure" has never been the key to effective livestokc disease control. Cure (or loss) comes after the fact. Disease prevention practices, accurate diagnosis when diseases do occur and proper treatment of them are the real keys.
Herrick, John B. D.V.M.
"Livestock Disease Situation - 1962,"
Iowa Farm Science: Vol. 16
, Article 9.
Available at: https://lib.dr.iastate.edu/farmscience/vol16/iss7/9