What is coronavirus how its stages effect on human body
What is coronavirus ? How its stages effect on human body . covid-19 was started from wuhan city in China .Wuhan has a large coastal area it has a biggest market of seafood and this virus comes in food chain through snake body. It is the infectious disease and spread with saliva. Government declared that disease as a pandemic at 13 March 2020. The full name of that disease is Noval covid-19 Noval -New Co- corona Vi - virus D- disease 19- It is a year The term novel is given to that disease novel/ new means it also existed before some years ago. In 2002 and 2003 same Corona like disease existed on earth that was SARS and the second one was MERS...