There are currently no approved treatments or vaccines for COVID-19, the disease caused by the new coronavirus, with governments, drugmakers and researchers working on around 100 vaccine programs. AstraZeneca also said it had received more than $1 billion from the U.S. Biomedical Advanced Research and Development Authority for development, production and delivery of the potential vaccine. It said results from an early stage clinical trail in southern England were expected shortly and, if positive, would lead to late stage trials in a number of countries. […]