Lassa fever

Vaccines for three deadly viruses fast-tracked

A coalition of governments and charities has committed $460m to speed up vaccine development for Mers, Lassa fever and Nipah virus.

They are asking funders at the World Economic Forum Davos for another $500m.

The Coalition for Epidemic Preparedness Innovations (Cepi) aims to have two new experimental vaccines ready for each disease within five years.

New vaccines usually take about a decade to develop and cost hundreds of millions of dollars.