海上３５日間でコロナ感染の謎、経路不明の漁船クラスター　アルゼンチン

【ブエノスアイレスＡＦＰ＝時事】アルゼンチンの漁船で出航前に行われた新型コロナウイルス感染症（ＣＯＶＩＤ-１９）の検査では、乗組員全員が陰性だったにもかかわらず、３５日間海上にいる間に５７人が感染したことが判明し、当局が感染経路の解明を試みている。（写真は資料写真）
　同国南部ティエラデルフエゴ州保健局の１３日の発表によると、漁船「エチゼンマル」は出航前、乗組員全員が義務として１４日間、ウスアイアのホテルで隔離生活を送り、新型ウイルスの検査結果はそろって陰性だった。
　ところが最近になって数人に典型的なＣＯＶＩＤ-１９の症状がみられたため、ウスアイアに帰港。新たな検査で乗組員計６１人のうち、５７人に感染が確認された、２人が入院しているという。
　同州の緊急対策委員会によると残る４人は、２人が陰性と判明、他の２人は検査結果を待っている。
　同州保健局長のアレハンドロ・アルファロ氏は「洋上に３５日間いた中でどうやって感染したのか、確証をつかむのは難しい。陸地との接触は全くなく、物資もウスアイアから積み込まれたものだけだった」と述べた。保健局では、感染状況を時系列で追うために、乗組員の症状の経過を調べているという。
　アルゼンチンでは１２日時点で新型コロナウイルスの感染者が１０万人を超え、死者は１８５９人に上っている。感染の大半は首都ブエノスアイレスで起きている。【翻訳編集ＡＦＰＢＢＮｅｗｓ】
〔ＡＦＰ＝時事〕（2020/07/15-13:21）

Argentina is trying to solve a medical mystery after 57 sailors were infected with the coronavirus after 35 days at sea, despite the entire crew testing negative before leaving port.
The Echizen Maru fishing trawler returned to port after some of its crew began exhibiting symptoms typical of COVID-19, the health ministry for the southern Tierra del Fuego province said Monday.
According to the ministry, 57 sailors, out of 61 crew members, were diagnosed with the virus after undergoing a new test.
However, all of the crew members had undergone 14 days of mandatory quarantine at a hotel in the city of Ushuaia. Prior to that, they had negative results, the ministry said in a statement.
Two of the other sailors have tested negative, and two others are awaiting test results, the province's emergency operations committee said.
Two sailors were hospitalized.
It's hard to establish how this crew was infected, considering that for 35 days, they had no contact with dry land and that supplies were only brought in from the port of Ushuaia, said Alejandra Alfaro, the director of primary health care in Tierra del Fuego.
A team was examining the chronology of symptoms in the crew to establish the chronology of contagion, she said.
The head of the infectious diseases department at Ushuaia Regional Hospital, Leandro Ballatore, said he believed this is a case that escapes all description in publications, because an incubation period this long has not been described anywhere.
We cannot yet explain how the symptoms appeared, said Ballatore.
The crew was placed in isolation on board the ship and returned to the port of Ushuaia.
Argentina exceeded 100,000 total cases on Sunday, and the death toll rose to 1,859. The majority of infections are in the Buenos Aires area.