AfricaLink on Air - 04 February 2015: 0705 UTCTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoAbu-Bakarr Jalloh02/04/2015February 4, 2015Ebola vaccine trials begin in Liberia+++German President Joachim Gauck visits Tanzania+++ Teachers in north eastern Kenya demand transfer to other regions after al- Shabab Mandera massacrehttps://p.dw.com/p/1EVGwAdvertisement