BusinessSouth Africa on high alert over bird flu To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoBusinessDominik von Eisenhart-Rothe08/04/2017August 4, 2017South Africa has culled half a million chickens to contain an outbreak of bird flu. The situation appears under control but farmers remain on high alert. https://p.dw.com/p/2hftvAdvertisement