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: as recently as 1967 , the world health organization calculated approximately that 15 million people affected by the disease and that two million died in that year . as recently as 1967 , the world health organization estimated that 15 million people contracted the disease and that two million died in that year . as currently as 1967 , the world health organization evaluate that 15 million people contracted the disease and that two million died in that year . as recently as 1967 , the world health organization estimated that 15 million people contracted the disease and that two million died in that year . as recently as 1967 , the world health organization estimated that 15 million people contracted the disease and that two million died in that year . in 1967 , the world health organization said that about 15 million people caught the disease and two million people died that year . in 1967 , the who estimated that about 15 million contracted the disease , of which about two million died . as late as 1967 , the world health organization estimated that 15 million people got the disease and that two million died in that year .