04 December 2017 - The WHO Africa Regional Immunization Technical Advisory Group (RITAG) will convene in Johannesburg, South Africa, from 5-7 December 2017 for its biannual meeting. The RITAG – which is composed of 15 immunization experts from across fields, including government bodies, academia, clinical practice and public health, among others – provides strategic guidance to the World Health Organization (WHO) Regional Director for Africa, Dr. Matshidiso Moeti, on regional immunization policies and programs.