This week Deputy CEO of Gavi, the Vaccine Alliance will be tweeting @Vaccines from Chad. She will be sharing moments from across the week, as she meets with partners, government and heath workers to discuss the nation’s immunisation challenges – from investment and collaboration to insecurity – and how to resolve them. Follow along to learn more about how Alliance partners are working with the government to transform the immunisation programme and help Chad build a healthier, more prosperous future.