In a post in Bill & Melinda Gates Foundation’s “Impatient Optimists” blog, Seth Berkley, CEO of the GAVI Alliance, examines “the contribution the Japanese people have made to immunization.” “For the last six years, they have been buying bonds sold by the International Finance Facility for Immunization (IFFIm), and the money they invest has been used by GAVI to buy vaccine bonds for the poorest countries in the world,” he writes, adding, “In all, the Japanese have purchased the equivalent of nearly $2 billion in IFFIm vaccine bonds since 2006” (10/10).