Not all people who contract the virus will experience it the same way and to make matters more complicated many of these symptoms resemble flu or cold. Using data from the following sources: Summary of a Report of 72 314 Cases From the Chinese Center for Disease Control and Prevention, JAMA Feb 24 and COVID-19—New Insights on a Rapidly Changing Epidemic, JAMA Feb 28 we've come to the following conclusions and developed the chart below. 80% of people contracting the virus may experience mild to moderate symptoms. These symptoms may resolve in ~7 days,. The remaining 15%-20% of people contracting the virus may develop into severe cases and most likely will require hospital care. In these severe cases the illness can last 2.5 weeks to months.