COVID-19 / CORONAVIRUS DISEASE 2019 C oronavirus is the infectious disease caused by the most recently discovered coronavirus . Both the virus and the disease were unknown before the outbreak began in Wuhan, China in December 2019 according to the World Health Organization. Coronavirus (CoV) are a large family of viruses. The name coronavirus is derived from the Latin corona , meaning "crown" or "halo", which refers to the characteristic appearance reminiscent of a crown or a solar corona around the virions / virus particles when viewed under two-dimensional transmission electron microscopy due to the surface covering in club-shaped protein spikes. HISTORICAL TIMELINE - This represents the sequence of events on how, where or when the Coronavirus originated and how many cases arise every single time and now the world is being affected, a pandemic. CAUSATIVE AGENT Chinese authorities made a preliminary determinatio