［2023年4月17日］
被稱為Arcturu的新冠Omicron亞變種病毒XBB.1.16, 是BA.2的分支，是已知傳染力最強的Omicron變異株，印度更連續4天破萬宗病例，須重推口罩令。
本港亦錄得數宗個案，政府專家顧問、中大呼吸系統科講座教授許樹昌表示，市民暫時毋須擔心，有出現病例的地方，死亡及重症個案並無急升。許樹昌說，現時的新冠口服藥仍能有效應對Arcturus，曾感染過或已接種新冠疫苗人士，體內的T細胞反應仍然可以應對這種病毒。
Arcturu病毒首次發現的地點是印度，迄今已在29個國家或地區被發現。印度媒體報導，感染者可能出現喉嚨痛、發燒、肌肉疼痛等症狀，還可能引起結膜炎，兒童感染後較多出現眼角膜發炎。世界衛生組織（WHO）指出，截至目前的報告並未顯示其導致住院或死亡的人數增加，但正密切觀察中。
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The newly discovered Omicron subvariant virus named Arcturu XBB.1.16 is a branch of BA.2, known as the most infectious Omicron variant. For four consecutive days, India reported over 10,000 cases, requiring the re-recommendation of masks.
Hong Kong has also recorded several cases. Professor David SC HUI, an adviser to the government's advisory committee and Chairman & Stanley Ho Professor of Respiratory Medicine under the Department of Medicine & Therapeutics, said that for the time being, residents do not need to worry. There has been no sudden increase in death and severe cases in places with outbreaks. Tsang said that the current orally administered new crown drugs are still effective against Arcturu. Those who have been infected or vaccinated against the new crown still have T-cell responses in their bodies to deal with this virus.
Arcturu virus was first discovered in India and has now been found in 29 countries and regions worldwide. Indian media reported that infected people may experience symptoms such as sore throat, fever, muscle pain, and may also cause conjunctivitis. Children infected afterwards more often develop keratitis around the eyes. The World Health Organization said that based on current reports, it has not seen an increase in hospitalization or deaths, but is closely monitoring the situation.
文: Area 51
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