“…A food-borne origin for the disease was established (Hain, 1949), but other workers believed that additional dietary, nutritional and possibly viral factors were associated with the pathogenesis (Pietzonka & Rassfeld-Sternberg, 1950;Hormann, 1948;Siegmund, 1948;Kloos & Brummund, 1951). As a result of the recovery of type C strains from man in New Guinea, the strains of Cl.…”