The vegan aiming to make the perfect meatless burger to please even the hardcore meat lover.
Virus lottery: What could be next epidemic? 18 January 2017 Last updated at 22:05 GMT Scientists have shortlisted three little-known diseases that they think could become the next global health emergency.They are announcing a $500 million fund to speed up vaccine development. So what are they? Our global health correspondent Tulip Mazumdar explains.
Read more Vaccines for three deadly viruses fast-tracked