What do you know about the coronavirus disease (COVID-19) that is causing a health emergency? Coronaviruses (CoV) are a large family of viruses that cause illness ranging from the common cold to more severe diseases such as Middle East Respiratory Syndrome (MERS-CoV) and Severe Acute Respiratory Syndrome (SARS-CoV). COVID-19 is caused by a coronavirus that has not been previously identified in humans (SARS-CoV-2). To find out more, watch this short video which was revised on 15 June 2020 to reflect the evolving context. Further resources are available online: https://openwho.org/courses/introduct... https://www.who.int/emergencies/disea... Learn about OpenWHO, WHO’s interactive, web-based, knowledge-transfer platform offering online courses to improve the response to health emergencies here: https://openwho.org/