Why NorCal’s new coronavirus case is significant: Infectious disease expert explains

A new case of the novel coronavirus confirmed in Northern California is possibly the first instance in the U.S. of community spread, the Centers for Disease Control and Prevention said Wednesday. UC Davis Health infectious disease specialist Dr. Dean Blumberg breaks down why this case is significant. He also explains why everyone is more susceptible to this new strain of the coronavirus. Get the details in the video above.