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MERS (Middle East Respiratory Syndrome) virus is a new type of coronavirus. This virus has been named the Middle East Respiratory Syndrome Coronavirus. Most MERS virus infections occur in Saudi Arabia. MERS-CoV was first discovered in Saudi Arabia in September 2012. It was named "SARS-like virus" because of its similarity to the clinical symptoms of SARS in the early days. It has also become the sixth known human coronavirus and the first to be isolated in the past 10 years. 3 types. The coronavirus in the human body was first isolated in the United Kingdom in the 1960s. The virus was named for its crown-shaped protrusions. It may be associated with respiratory infections in humans, pigs, cats, dogs, rats and chickens. Out of easy-to-understand considerations, the media often refer to MERS as the new SARS, but in fact, although these two viruses are both coronaviruses, they have a clear genetic difference and use different receptors when infecting the human body .