According to Psych Central Staff (April 4, 2020), the following information is crucial for our understanding about the virus and how it spreads. Most people in the world are now acutely aware that an outbreak of COVID-19 was detected in mainland China in December of 2019. As we speak, every continent in the world has been affected by this highly contagious disease, with nearly a million cases diagnosed in over 200 countries worldwide. Read more.