最近剛發的歐州硏究，探討血型基因對感染新冠病毒後出現呼吸衰竭的影響
Blood group type may affect susceptibility to COVID-19 respiratory failure
A group of over 120 researchers from various institutions across Europe has performed the first genome-wide association study to reveal host genetic factors that may contribute to respiratory failure in cases of coronavirus disease 209 (COVID-19).
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A lead SNP was also identified on chromosome 9 at the ABO blood group locus, and further analysis showed that A-positive participants were at a 45% increased for respiratory failure, while individuals with blood group O were at a 35% decreased risk for respiratory failure.
兩個半月前，中國研究人員已經報導過臨床觀察。
http://www.chinacdc.cn/gwxx/202003/t20200319_214582.html
http://www.xinhuanet.com/politics/2020-03/19/c_1125732894.htm
研究認為，O型血對新冠肺炎相對不易感，風險較低；A型血對新冠肺炎相對易感，風險也較高。該研究論文《Relationship between the ABO Blood Group and the COVID-19 Susceptibility》於當地時間3月17日刊發在預印本平台medRxiv，尚未經同行評議。
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研究者還發現，與非O型血型醫院工作人員相比，O型血型醫院工作人員被感染的機會更低。
美國紐約也有類似的臨床觀察
https://newyork.cbslocal.com/2020/04/28/coronavirus-blood-type/
A more recent study, again preliminary, from New York Presbyterian Hospital COVID-19 patients found a similar association with blood types but with an added wrinkle.
The higher infection rates for A Types was only for A-positive. Similarly, the lower rates for O Types was for O-positive blood types.
三個大感染區均有相似的報告，可見血型與新冠病確實有關。
O型患病少，而且不易出現呼吸衰竭。
A型的要多加保重。
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