As of this writing, the respiratory disease COVID-19 has caused nearly 3000 deaths and infected over 80,000 people worldwide. There are relatively few cases in North America currently, but that could increase significantly. For high-quality information about COVID-19, turn to the World Health Organization and the US Centers for Disease Control and Prevention.
For now, the Centers for Disease Control are recommending sensible precautions. They include regular hand washing or using alcohol-based hand sanitizer, covering coughs and sneezes (with your elbow), and staying home and avoiding public spaces if you’re feeling unwell. (These are smart things to do during flu season anyway, given that 10,000 people in the US have died of influenza already this season.)