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Middle East respiratory syndrome coronavirus : ウィキペディア英語版 | Middle East respiratory syndrome coronavirus
The Middle East respiratory syndrome coronavirus (MERS-CoV), or EMC/2012 (HCoV-EMC/2012), is a novel positive-sense, single-stranded RNA virus of the genus Betacoronavirus. Initially called novel coronavirus 2012 or simply novel coronavirus, it was first reported in 2012 after genome sequencing of a virus isolated from sputum samples from person who fell ill in a 2012 outbreak of a new flu. As of July 2015, MERS-CoV cases have been reported in over 21 countries, including Saudi Arabia, Jordan, Qatar, Egypt, the United Arab Emirates, Kuwait, Turkey, Oman, Algeria, Bangladesh, Indonesia (none were confirmed), Austria,〔(【引用サイトリンク】title= Disease Outbreak News )〕 the United Kingdom, South Korea,〔(【引用サイトリンク】title=Middle East respiratory syndrome coronavirus (MERS-CoV) – Republic of Korea )〕〔(【引用サイトリンク】title=Middle East Respiratory Syndrome (MERS) to the Far East: Hospital Associated Outbreak in South Korea - Re: Why the panic? South Korea’s MERS response questioned )〕 the United States,〔(【引用サイトリンク】url=http://www.cnn.com/2014/05/19/health/mers-outbreak/ )〕 Mainland China,〔(【引用サイトリンク】title= Middle East respiratory syndrome coronavirus (MERS-CoV) – China )〕 Thailand,〔(【引用サイトリンク】title= Thailand confirms first Mers case: Health ministry )〕 and the Philippines.〔(【引用サイトリンク】title=Philippines Confirms First Case of MERS )〕 ==Virology== The virus MERS-CoV is a new member of the beta group of coronavirus, ''Betacoronavirus'', lineage C. MERS-CoV genomes are phylogenetically classified into two clades, clade A and B. The earliest cases of MERS were of clade A clusters (EMC/2012 and Jordan-N3/2012), and new cases are genetically distinct (clade B).〔(【引用サイトリンク】title=MERS Coronaviruses in Dromedary Camels, Egypt )〕 MERS-CoV is distinct from SARS coronavirus and distinct from the common-cold coronavirus and known endemic human betacoronaviruses HCoV-OC43 and HCoV-HKU1.〔 Until 23 May 2013, MERS-CoV had frequently been referred to as a SARS-like virus, or simply the novel coronavirus, and early it was referred to colloquially on messageboards as the "Saudi SARS".
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