B Part of It /newsroom/ en Study results will inform immunisation programs globally /newsroom/news/list/2020/01/23/study-results-will-inform-immunisation-programs-globally The results of the B Part of It study – the largest meningococcal B herd immunity study ever conducted – are published today in the New England Journal of Medicine. January 23 2020 David Ellis /newsroom/news/list/2020/01/23/study-results-will-inform-immunisation-programs-globally