Coronavirus: A Two-Part Series

The novel coronavirus has now become a pandemic. Europe has become the epicenter and every continent except Antarctica has cases. In the United States, cases are rising exponentially and the government is working to buy time so that a vaccine and treatments can come online. In our two-part series for PBS Newshour, we look at the race for a COVID-19 vaccine and the work of a group of disease detectives who are trying to understand this new disease.