This document provides information about COVID-19 from its history and presentation to current testing methods. It describes how the virus was first identified in Wuhan, China in late 2019. It discusses the viral structure and how it infects human cells using spike proteins that attach to ACE2 receptors. Common symptoms are explained as well as how it spreads through respiratory droplets. Details are given about protective equipment and testing procedures used to detect the virus. The importance of preventative measures like handwashing and social distancing are also emphasized.