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Plum Island Animal Disease Laboratory Serves Livestock Industry and Mankind

Animal Husbandry Department, Cornell University, Ithaca, N. Y.

ABSTRACT

In the days of sailing ships many vessels carried a cow to supply fresh milk. In 1843, the records indicate that a British ship, the Washington, unloaded in New York a dry cow and took on a fresh one for the next trip out. Peter Dunn, a milkman, bought the captain's milked-out bovine at a bargain price; but that bargain cow, it was discovered later, became the source of a new cattle disease in America, contagious bovine pleuropneumonia, which by 1886 had spread throughout the East and westward to Ohio, Kentucky, Illinois, and Missouri. It was not until 1892 that it was declared eradicated. Contagious pleuropneumonia still menaces many parts of the world except western Europe, the western hemisphere, and a few smaller areas where it has been eliminated.

Foreign diseases today remain a constant threat to the dairy and livestock industries of this country. The problem of keeping out these foreign intruders is a growing one.