Corona virus is one of the viruses that attack the respiratory system, and it was discovered in the sixties of the last century, and it was called by this name because its shape resembles a crown, and it belongs to the group of coronaviruses (coronaviruses) that are generally considered not dangerous, and usually cause symptoms Simple colds, however there are some types of them are dangerous, a certain type of cold may cause the death of more than 475 people from the Middle East with Middle East Respiratory Syndrome (MERS),Which appeared for the first time in 2012 in the Kingdom of Saudi Arabia, then in other countries in the Middle East, Africa, Asia, and Europe, and before that in 2003 another type of this family spread, and eliminated a number of patients, and it was called at that time severe acute respiratory syndrome or SARS (In English: Severe acute respiratory syndrome).[1] If you are looking for the new corona disease, what is it? What are its causes and the origin of its spread? What is its relationship to previous corona viruses? And what are its symptoms? Are there ways to prevent and treat it? We advise you to read the article What is the new corona virus 2019-20 that presents the full scientific facts about the new virus