Two weeks ago, coronavirus — specifically COVID-19 — arrived in Pittsburgh. In the form of two tiny vials less than two inches tall containing roughly 50 million viruses. Now, researchers at the Center for Vaccine Research on the campus of the University of Pittsburgh are growing coronavirus. Some people have expressed concern that something as dangerous as coronavirus has been shipped into the city. But researchers at Pitt are trying to assure the public the reason it is here is because they are working to safely and quickly develop a vaccine for the disease.