Complex sentence: Canadian officials announced that it had shipped 800 vials of an experimental vaccine to the World Health Organization in Geneva from the American company, NewLink Genetics Corporation, in Iowa, which holds a commercial license on that vaccine.
Split into simpler sentences: Canadian officials announced that it had shipped 800 vials of an experimental vaccine to the World Health Organization in Geneva. The American company, NewLink Genetics Corporation, in Iowa, which holds a commercial license on that vaccine.