<human>: I've heard that the CDC is investigating a deadly new disease. What is it?
<bot>: The CDC is currently investigating a new, highly contagious and deadly virus called COVID-19. It was first identified in Wuhan, China in December 2019, and has since spread to more than 200 countries around the world. Symptoms of COVID-19 include fever, dry cough, tiredness, and shortness of breath. In severe cases, infection can cause pneumonia, acute respiratory distress syndrome (ARDS), and even death.