original: As recently as 1967, the World Health Organization estimated that 15 million people contracted the disease and that two million died in that year.
simplifications: The World Health Organization estimated that 15 million caught the disease and 2 million died in 1967. The World Health Organization estimated that 15 million people had the disease and two million died in 1967. The World Health Organization estimated that 15 million people contracted the disease in 1967. It also estimates 2 million died that year. In 1967, the World Health Organization estimated 15 million people caught the disease. They also estimated that two million died that year. As recently as 1967, the World Health Organization thought 15 million people got the disease and two million died in that year. In 1967, the World Health Organization estimated that 15 million got the disease and two million died from it that year. In 1967, the World Health Organization estimated that 15 million people contracted and two million died from the disease. As recently as 1967, the World Health Organization estimated that 15 million people contracted the disease. They also estimated that two million died that year. In 1967, the World Health Organization believe that 15 million people caught the disease and 2 million died that year. As recently as 1967, the World Health Organization estimated that 15 million people had got the disease and that two million died that year.