Is patenting vaccines a threat to public health?

Pitting innovation against equitable access to medicine: Should drugs and vaccines have patents and fall under intellectual property laws? It's a particularly difficult question in times of a public health crisis. On Big Ideas, a panel of experts will draw on their own experiences and re-think vaccine creation, production and distribution. Do we need to change IP laws, or should we be looking at other measures to ensure those who need vaccines and medication, can access them - regardless of cost, or which country they live in?