Dogs: PRE-1900 Treatment for rabies — deadly disease marked by convulsions and death; affects wild and domestic animals; can be transmitted to humans.

1900s Treatment for rickets — a vitamin D deficiency causing defective bone growth in infants and children.

1900s Development of cardiac catheterization techniques — a procedure which allows doctors to insert a flexible tube into an artery or vein to the heart; used for injecting drugs directly into the heart to measure blood flow and pressure, diagnose and treat congenital heart disease and narrowed passages.

1920s Discovery of Insulin — to control diabetes, a chronic disease of the pancreas marked by the inability to utilize carbohydrates, excess sugar in the blood and urine, excessive thirst, hunger and urination, weakness and emaciation can cause blindness and death.

1930s Development of modern anesthesia — allowing artificially induced unconsciousness or local or general insensitivity to pain.

1950s Development of open-heart surgery and cardiac pacemaker — revolutionized treatment for people suffering from severe heart disease.

1970s Advances in cardiology — including measurement of coronary blood flow, myocardial preservation techniques, and heart transplant and coronary artery bypass techniques. Advances in hypertension.

1970s Using the latest techniques of virology, researchers adapted an existing feline vaccine to protect dogs from parvovirus.

1980s - Present Organ transplant techniques — surgical and medical advances such as anti-rejection drugs to enable heart, liver, lung, and other transplants to succeed.