伊波拉疫情现缓和迹象 科学家寻找通用疗法

2026年6月2日 18:32 / 联合早报

伊波拉疫情现缓和迹象 科学家寻找通用疗法

身穿全套防护装备的红十字会工作人员在伊图里省一处住宅外进行地面消毒。 （路透社）

（金沙萨综合电）伊波拉疫情出现初步放缓迹象后，刚果（金）政府重新开放东部重灾区伊图里省首府的主要机场。

刚果（金）交通部星期一（6月1日）在发声明说，布尼亚机场已恢复运营。根据防疫安排，乘客在出发和抵达时须接受体温检测。

据星期一发布的疫情通报，刚果（金）东部23个卫生区已累计报告321起确诊病例，其中48人死亡。当局目前只对已识别接触者中的43%进行主动监测，远低于95%的目标比例；另有47份实验室样本仍在等待分析。

刚果（金）东部疫情持续扩大，也让科学家重新关注长期缺乏专门疫苗和疗法的本迪布焦型（Bundibugyo）伊波拉病毒。

乌干达病毒研究所团队正研究2007年班迪布焦疫情幸存者的血液样本，希望从他们体内长期保留的免疫反应中，筛选出能够同时识别多种伊波拉病毒甚至马尔堡病毒的广谱抗体，为开发新一代通用疗法和疫苗提供线索。

不过，科学家距离真正的“通用疗法”仍有一段距离。

美国陆军传染病医学研究所专家戴伊指出，目前还没有找到一种同时对伊波拉和马尔堡病毒都有效的抗体。若最终无法做到这一点，未来或须采用“抗体鸡尾酒”的做法，用不同的抗体分别对付不同的病毒。

戴伊说：“一款药只对一种病原体有效的研发模式并不具备可持续性，我们真正需要的是尽可能用一种疗法覆盖多种病原体。”

拉霍亚免疫学研究所所长萨菲尔打了个比方，科学家要找的不是病毒表面最显眼、但各不相同的特征，而是它们共同拥有、且维持病毒运作所必需的关键结构；若能锁定这一共同弱点，就有望阻断感染。

身穿全套防护装备的红十字会工作人员在伊图里省一处住宅外进行地面消毒。 （路透社）

（金沙萨综合电）伊波拉疫情出现初步放缓迹象后，刚果（金）政府重新开放东部重灾区伊图里省首府的主要机场。

刚果（金）交通部星期一（6月1日）在发声明说，布尼亚机场已恢复运营。根据防疫安排，乘客在出发和抵达时须接受体温检测。

据星期一发布的疫情通报，刚果（金）东部23个卫生区已累计报告321起确诊病例，其中48人死亡。当局目前只对已识别接触者中的43%进行主动监测，远低于95%的目标比例；另有47份实验室样本仍在等待分析。

刚果（金）东部疫情持续扩大，也让科学家重新关注长期缺乏专门疫苗和疗法的本迪布焦型（Bundibugyo）伊波拉病毒。

乌干达病毒研究所团队正研究2007年班迪布焦疫情幸存者的血液样本，希望从他们体内长期保留的免疫反应中，筛选出能够同时识别多种伊波拉病毒甚至马尔堡病毒的广谱抗体，为开发新一代通用疗法和疫苗提供线索。

不过，科学家距离真正的“通用疗法”仍有一段距离。

美国陆军传染病医学研究所专家戴伊指出，目前还没有找到一种同时对伊波拉和马尔堡病毒都有效的抗体。若最终无法做到这一点，未来或须采用“抗体鸡尾酒”的做法，用不同的抗体分别对付不同的病毒。

戴伊说：“一款药只对一种病原体有效的研发模式并不具备可持续性，我们真正需要的是尽可能用一种疗法覆盖多种病原体。”

拉霍亚免疫学研究所所长萨菲尔打了个比方，科学家要找的不是病毒表面最显眼、但各不相同的特征，而是它们共同拥有、且维持病毒运作所必需的关键结构；若能锁定这一共同弱点，就有望阻断感染。

Rubio braces for Hill grilling as Republicans join bid to curb Trump’s Iran war powers

June 2, 2026 6:30am EDT / Fox News

Both chambers could advance legislation this week to halt the US involvement in the Iran war, absent congressional authorization

By Adam Pack Fox News

Secretary of State Marco Rubio says the Trump administration prefers a negotiated deal with Iran, but that “other options” remain available if diplomacy fails.

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Secretary of State Marco Rubio is expected to face tough questions on Capitol Hill this week as Congress threatens to curb President Donald Trump’s war powers, while the administration pushes for an end to the conflict with Iran.

Rubio will testify in four congressional hearings on Tuesday and Wednesday on the State Department’s budget for the upcoming fiscal year. But the Trump official is likely to be grilled on the ongoing negotiations to end the war and whether the U.S. military campaign should continue against Iranian forces and the country’s nuclear capabilities.

The U.S. and Iran have yet to agree on terms to end sporadic fighting. Iran’s stockpile of highly enriched uranium, the reopening of the Strait of Hormuz and potential sanctions relief have emerged as key sticking points in negotiations.

President Donald Trump said Monday that he “couldn’t care less” if the stalled talks were over, in an interview with CNBC.

President Donald Trump speaks during a Cabinet meeting at the White House in Washington on May 27, 2026, as Secretary of War Pete Hegseth looks on.(Jacquelyn Martin/AP)

TRUMP SAYS IRAN IS ‘NEGOTIATING ON FUMES,’ BELIEVES REGIME THOUGHT THEY COULD OUTWAIT HIM

“I don’t care if they’re over, honestly,” Trump told the outlet. “If they’re over, they’re over. If they’re not, you know, I think they took too much time. Frankly, I thought they started to get very boring.”

The president’s comments followed fresh rounds of fighting over the weekend that tested the fragile ceasefires in place since early April. The U.S. military has shown no signs of ending its blockade of Iranian ports while Tehran has continued to flex its hold over the Strait of Hormuz.

https://www.foxnews.com/video/6397229860112

Rubio’s Hill appearances come as both the House and Senate could advance legislation this week that would halt U.S. involvement in the war, absent congressional authorization.

A successful war powers resolution would likely be a symbolic blow to the administration given an expected presidential veto and the lack of a veto-proof majority.

GOP REP MASSIE JOINS DEMOCRATS IN OPPOSITION TO US IRAN STRIKES

But the president may suffer a political setback as a growing number of Republicans are souring on Trump’s handling of the war.

In the House, Reps. Thomas Massie, R-Ky., Brian Fitzpatrick, R-Pa., and Tom Barrett, R-Mich., have joined Democrats in voting to curtail the president’s war powers — and more GOP lawmakers could follow suit this week.

Secretary of State Marco Rubio looks on during a dedication ceremony for an annex building at the U.S. embassy in New Delhi on May 23, 2026.(Julia Demaree Nikhinson/AFP)

The Trump administration has repeatedly argued that the 1973 War Powers Resolution requiring congressional oversight of military action infringes on the executive branch.

Beyond the war powers debate, Rubio is also likely to face questions about Trump accepting a deal that stops short of dismantling Iran’s nuclear program. The Trump administration has repeatedly said it would never agree to anything that allows Iran to have a nuclear weapon.

Some Republicans with hawkish national security views have warned Trump against agreeing to a deal that would let Tehran continue to project power across the region.

https://www.foxnews.com/video/6397219487112

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“Our commander in chief needs to allow America’s skilled armed forces to finish the destruction of Iran’s conventional military capabilities and reopen the strait,” Sen. Roger Wicker, R-Miss., wrote on social media in late May. “Further pursuit of an agreement with Iran’s Islamist regime risks a perception of weakness. We must finish what we started. It is past time for action.”

Fox News Digital reached out to the State Department for comment.

California votes in primary to pick new governor, and maybe tip balance in Congress

2026-06-02T10:12:27.645Z / Reuters

Summary

• Democrats Becerra and Steyer lead polls, with Hilton top Republican after Trump endorsement
• Redrawn congressional maps could help determine control of US House of Representatives
• Los Angeles Mayor Bass facing multiple challengers amid voter frustration

June 2 (Reuters) – California votes on Tuesday in a primary election that will choose two finalists for governor and Los Angeles mayor ​while also testing newly redrawn congressional lines that could tip the balance of power in the U.S. House of Representatives.

The marquee contest is ‌the open race for governor, with Governor Gavin Newsom termed out and widely seen as pursuing a run for the White House in 2028. A field of 61 candidates is competing under the state’s “jungle primary,” in which the two highest vote-getters advance regardless of party.

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The latest polls show Democrat and former Biden cabinet secretary Xavier Becerra leading, with Democratic billionaire Tom Steyer and Republican television ​personality Steve Hilton also challenging for the right to move on to the November 3 general election.

Tuesday’s results will determine whether Democrats can avoid internal ​fragmentation and whether a Republican can capitalize on a divided electorate. Moreover, the primary marks the first test of a new ⁠congressional map that could turn the midterm contest into a pivotal battle with control of Congress at stake.

After Trump urged Texas last year to draw new district ​maps designed to pick up five Republican seats, Newsom counterpunched by shepherding through a voter initiative aimed at swinging five California seats into the Democratic column. Under California’s ​formerly independent redistricting, Democrats already held a 43-9 advantage within the state’s congressional delegation.

Even in such a Democratic state, early polls in the gubernatorial race suggested two Republicans might finish on top, as Hilton and Riverside County Sheriff Chad Bianco led.

But now the Democrats could be poised to land both spots, if the polls are correct in placing Becerra and Steyer near the top.

Since ​adopting the jungle primary in 2014, California has never nominated two Democrats in a gubernatorial election, though it has happened in other races, including Kamala Harris’ election ​to the U.S. Senate in 2016.

On the Republican side, Hilton, a former Fox News host, pulled away from Bianco after getting President Donald Trump’s endorsement.

The Democratic field appeared to coalesce around Becerra ‌after former ⁠frontrunner Eric Swalwell left the race and resigned from the U.S. Congress in April following accusations of sexual assault from a former staffer. Swalwell denied the allegations.

Mark Baldassare, survey director at the Public Policy Institute of California, said voters seemed to be placing importance on Becerra’s experience, seeing him as a safe bet after Swalwell’s departure.

“His message about his time as attorney general defending California, particularly around issues involving the Trump administration, seems to have resonated with many Democratic voters who overwhelmingly are disapproving of President ​Trump’s job performance,” Baldassare said.

Steyer, who has ​portrayed himself as the most progressive ⁠of the Democratic frontrunners, has remained near the top of polls after spending around $200 million of his own money on the campaign. He has promised more taxes on billionaires, including himself.

OTHER CALIFORNIA RACES

Elsewhere on the ballot, Los Angeles Mayor Karen Bass faces ​a field of more than a dozen challengers amid voter concerns over homelessness, affordability and the aftermath of the 2025 ​Palisades fire.

She was challenged ⁠within her party by city Councilmember Nithya Raman, while polls show the leading Republican candidate is reality television personality Spencer Pratt.

Among congressional contests, prognosticators see the 22nd district race in the agricultural Central Valley as the closest, with Republican Representative David Valadao seeking reelection against two Democrats, state Assemblymember Jasmeet Bains and educator Randy Villegas.

One seat Democrats are hoping ⁠to pick up ​is the 48th district, after liberal Palm Springs was moved from its Riverside County district to ​inland San Diego County, where Republican incumbent Darrell Issa opted against seeking reelection.

The polls will be open from 7 a.m. to 8 p.m. PDT on Tuesday (1400 to 0300 GMT), but definitive results in close races ​could take days as California allows voters to mail in ballots up to Election Day.

Reporting by Daniel Trotta in Carlsbad, California; Editing by Michael Learmonth and Jamie Freed

Ranking the 2028 Republican presidential contenders

June 2, 2026 at 5:00 a.m. EDT / The Washington Post

Vance and Rubio top the early list, but Republicans are already debating who can inherit Trump’s movement.

(Washington Post illustration; Jabin Botsford/The Washington Post; Eric Lee/For The Washington Post; Maxine Wallace/The Washington Post; Tom Brenner/For The Washington Post; Demetrius Freeman/The Washington Post; Evan Vucci/AP; iStock)

Analysis by Amber Phillips

Who is going to lead the Republican Party after a decade of President Donald Trump? A succession fight is brewing over who inherits his movement — and whether any Republican can build a campaign by breaking away from it.

俄罗斯军队在今年6月2日凌晨对乌克兰发动新一轮大规模导弹与无人机袭击，导致乌克兰多地彻夜炮火连天。 （法新社）

随着俄乌战争持续，乌克兰正依靠无人艇、遥控车辆和固定翼无人机等新技术来增强前线作战能力。同时，一个由初创企业、投资机构和防务加速器组成的创新生态系统也在成形，为乌军源源不断提供成本较低、部署迅速的新型装备。

路透社报道，在上周末于基辅举行的一场防务产品展示会上，八家初创企业向乌克兰军方展示最新研发的无人化作战系统。其中，丹麦海事情报与安全公司BlueShadow正与乌克兰合作开发海上无人艇控制系统，希望通过自主无人艇组成海上防线，阻止俄军无人机穿越黑海袭击港口城市敖德萨。

公司创始人、前美国潜艇指挥官马赫（Charles Maher）透露，系统全面部署后将包括四个中队共48艘自主舰艇，在距离海岸约10至12公里的海域巡逻。首个配备导弹和拦截无人机的中队预计于2027年初投入运作。

这些初创企业大多获得防务加速器Defence Builder支持。这一机构为企业提供1万美元启动资金及为期四个月的加速计划，协助吸引投资，并安排与乌军接触，以获取前线使用反馈。

Defence Builder首席执行长林德维格（Line Rindvig）说：“商业归商业，但我们也在服务一个更大的目标，那就是确保赢得这场战争所需的解决方案获得足够资金支持。”

机构同时也是“乌克兰国防工业理事会投资者俱乐部”成员。俱乐部估计，公开披露的乌克兰防务投资已从2023年的110万美元增至去年的1亿500万美元（约2亿新元）。

为加快采购流程，乌克兰前线部队如今可直接通过Brave1 Market线上平台或被称为“武器版亚马逊”的DOT-Chain系统采购装备。平台汇集约200家厂商提供的800种产品，部队使用后还可留下评价。

林德维格指出，遥控陆上车辆是当前重点发展方向之一。随着大量无人机活跃于前线区域，士兵直接执行运输和补给任务变得越来越危险。

爱沙尼亚初创企业Telearmy自2023年以来，已在前线卡车和装甲车安装远程控制系统，使车辆可在数百公里外操控。公司创始人兰索（Enn Laansoo）说：“你已经不能再把士兵直接送到前线，我们的技术让士兵不必亲自在现场承担风险。”

此外，乌克兰初创企业Wingtech研发出可重复使用的固定翼轰炸无人机“Haba”，航程可达300公里，并具备较强抗干扰能力。目前Haba已在战场部署超过一年。为满足军方需求，一家乌克兰防务制造商已向Wingtech提供资金支持，协助扩大生产规模。

俄罗斯军队在今年6月2日凌晨对乌克兰发动新一轮大规模导弹与无人机袭击，导致乌克兰多地彻夜炮火连天。 （法新社）

随着俄乌战争持续，乌克兰正依靠无人艇、遥控车辆和固定翼无人机等新技术来增强前线作战能力。同时，一个由初创企业、投资机构和防务加速器组成的创新生态系统也在成形，为乌军源源不断提供成本较低、部署迅速的新型装备。

路透社报道，在上周末于基辅举行的一场防务产品展示会上，八家初创企业向乌克兰军方展示最新研发的无人化作战系统。其中，丹麦海事情报与安全公司BlueShadow正与乌克兰合作开发海上无人艇控制系统，希望通过自主无人艇组成海上防线，阻止俄军无人机穿越黑海袭击港口城市敖德萨。

公司创始人、前美国潜艇指挥官马赫（Charles Maher）透露，系统全面部署后将包括四个中队共48艘自主舰艇，在距离海岸约10至12公里的海域巡逻。首个配备导弹和拦截无人机的中队预计于2027年初投入运作。

这些初创企业大多获得防务加速器Defence Builder支持。这一机构为企业提供1万美元启动资金及为期四个月的加速计划，协助吸引投资，并安排与乌军接触，以获取前线使用反馈。

Defence Builder首席执行长林德维格（Line Rindvig）说：“商业归商业，但我们也在服务一个更大的目标，那就是确保赢得这场战争所需的解决方案获得足够资金支持。”

机构同时也是“乌克兰国防工业理事会投资者俱乐部”成员。俱乐部估计，公开披露的乌克兰防务投资已从2023年的110万美元增至去年的1亿500万美元（约2亿新元）。

为加快采购流程，乌克兰前线部队如今可直接通过Brave1 Market线上平台或被称为“武器版亚马逊”的DOT-Chain系统采购装备。平台汇集约200家厂商提供的800种产品，部队使用后还可留下评价。

林德维格指出，遥控陆上车辆是当前重点发展方向之一。随着大量无人机活跃于前线区域，士兵直接执行运输和补给任务变得越来越危险。

爱沙尼亚初创企业Telearmy自2023年以来，已在前线卡车和装甲车安装远程控制系统，使车辆可在数百公里外操控。公司创始人兰索（Enn Laansoo）说：“你已经不能再把士兵直接送到前线，我们的技术让士兵不必亲自在现场承担风险。”

此外，乌克兰初创企业Wingtech研发出可重复使用的固定翼轰炸无人机“Haba”，航程可达300公里，并具备较强抗干扰能力。目前Haba已在战场部署超过一年。为满足军方需求，一家乌克兰防务制造商已向Wingtech提供资金支持，协助扩大生产规模。

中国实体经济疲软大量流动性淤积 央行逆回购操作降至新低

2026年6月2日 15:45 / 联合早报

中国实体经济疲软大量流动性淤积 央行逆回购操作降至新低

图为民众今年5月20日经过位于北京的中国人民银行。 （中新社）

中国央行公开市场逆回购操作量本周降至历史最低，进入6月后积极大幅回笼流动性之举，也令银行间市场国债暂停连续上涨之势。

据彭博社报道，中国央行星期二（6月2日）开展2亿元（人民币，下同，3778万新元）七天期逆回购操作，单日规模较4至5月间的5亿元地量操作进一步回落，再创历史新低。本周进入6月来，央行连续两天累计回笼资金接近5000亿元。

随着中国最新经济数据走弱及A股连续回调，中债估值显示10年期国债收益率已跌至10个月低点。实体经济需求疲软，导致大量流动性淤积在银行间市场；跨月后央行积极回笼流动性，旨在防止资金过度宽松，料将有助于抑制近期债券的上涨势头。

华创证券分析师周冠南分析：“此举除了体现出机构对资金的需求不足之外，也体现了央行不希望资金过度宽松和国债收益率过快下行。”

他指出在收益率下行阶段，央行积极回收流动性，旨在引导资金价格和债券波动处于合理区间。

据报道，星期二上午中国长债和超长债收益率均小升，10年期国债重新站上1.7%，暂停此前连六天下跌之势。

据彭博计算，过去三个月，中国央行通过买断式逆回购和中期借贷便利（Medium-term Lending Facility，简称MLF）共回笼了1.75万亿元的中长期流动性。

不过，针对当前公开市场七天质押式逆回购采用固定利率、数量招标的方式，中国央行主管的《金融时报》此前曾连续发文称，市场应摒弃“唯操作量论”的片面认知，综合看待流动性的总量、结构与价格指标。

民进党批郑丽文访美团是“习办外宣团”

2026-06-02 15:49 / 联合早报

AI摘要

• 民进党批评国民党主席郑丽文率团访美是“习办外宣团”，称其言论与北京对台文宣高度一致，意图削弱台美互信。
• 民进党质疑随行人员勤彭蓁具陆配背景及台企联职务，暗示其为国台办“监军”，并关联马英九办公室风波，指访团动机可疑。
• 国民党反驳称此行旨在传递和平讯息，符合主流民意，并澄清勤彭蓁仅自费参加侨宴，非正式团员，批评民进党抹红无据。
• 郑丽文强调访美目的是争取美方理解，维系两岸和平，避免战争，呼吁美国勿受民进党误导。

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郑丽文星期一在行前记者会上说，希望这次访美能深化对于两岸和平、区域和平稳定的愿望与努力。 （中新社）

台湾在野的中国国民党主席郑丽文率团访美，执政的民进党批评，郑丽文此行是披着交流外衣的“习办外宣团”。

据联合新闻网报道，民进党发言人林楚茵星期二（6月2日）说，郑丽文近期一系列言论，本质上只是在掩盖其倒向北京的政治投机，其论述与北京对台文宣高度契合，此行根本是披着交流外衣的“习办外宣团”。

林楚茵说，郑丽文日前在公开场合不断宣称，台湾在美陆之间不用选边站，企图以中立言论掩盖倾向，此举完全无视北京对台持续不断的军事威胁，意图削弱台湾与民主盟友间的信任，在国际上散播错误讯息，严重伤害台湾的国防与外交自主。

她说，这次访团名单中夹带陆配背景、身兼台企联副会长的国民党中常委勤彭蓁，“是否为国台办监军，引发社会强烈质疑”；近期马英九办公室风波中，与萧旭岑“捧钱合照”的正是台企联会长，“现又有媒体直指北京高层已下达‘全力保萧’的指令，种种不寻常的利益互动与政治默契，让这场访美动机蒙上巨大阴影，也让台湾社会深感疑虑。”

林楚茵说，郑丽文这场访美之行不但无法提升台湾的国际互信，反而向美方与国际社会传递错误讯号。国民党切勿一意孤行，沦为统战传声筒，应立即对随团成员背景及相关资金疑云向台湾民众交代清楚。

对于民进党的指责，国民党回应称，郑丽文此行访美主轴为传递和平讯息，符合台湾多数民意，民进党乱扣红帽毫无作用。国民党一贯主张两岸以对话取代对抗，以交流避免交战，这也是台湾人民共同的期待。

对于陆配中常委勤彭蓁随团赴美，国民党澄清，勤彭蓁这次是自费出席访美过程中的侨宴，纯属个人参与，并非访问团团员，民进党应停止借此抹红、无的放矢。

郑丽文率国际部主任董佳瑜和组织发展委员会海外部主任吴亮仪等人，星期一（6月1日）启程访美，先抵达旧金山，参访当地具代表性的企业，并前往斯坦福大学胡佛研究所与学者座谈。按照计划，郑丽文一行随后将飞往波士顿，与哈佛大学及麻省理工学院学者交流，并与学生座谈；之后飞往纽约拜访侨界及当地重要智库；纽约行程结束之后前往华府，拜访国会议员及行政部门的官员，也将前往重要智库参加座谈会；最后再飞往洛杉矶拜访侨胞，预定6月16日返台。

郑丽文星期一在行前记者会上说，希望这次访美能深化对于两岸和平、区域和平稳定的愿望跟努力，“这样的承诺跟努力，不只是来自于两岸，更需要来自国际社会，尤其美国的支持”。她称，希望美国不要被执政的民进党长期以来的恶意误导，对国民党持有不实的误解和成见，从第二次世界大战迄今，国民党才是最负责任的政党，可以维系两岸和平，不让美国卷入一个可以避免的战争。

日本国立健康危机管理研究机构称，麻疹传染力极强，没有免疫的人如果暴露于病毒，超过90%会发病，病情严重者会出现肺炎、脑炎等症状。 （示意图／Pixabay）

日本公布的数据显示，今年以来日本累计报告麻疹病例达511例，是去年同时期的近四倍。

新华社报道，日本国立健康危机管理研究机构星期二（6月2日）发布的数据显示，2026年5月18日至24日，日本全国医疗机构共报告麻疹病例11例。今年以来累计报告511例；其中东京都占近一半，为253例。过去10年中，日本报告麻疹病例最多的年份为2019年，达744例。

日本国立健康危机管理研究机构称，麻疹传染力极强，没有免疫的人如果暴露于病毒，超过90%会发病，病情严重者会出现肺炎、脑炎等症状。世界卫生组织2015年认定日本已消灭麻疹，即至少有三年未发现本土的麻疹病毒毒株。但2023年以来，全球范围麻疹病例报告数持续增加，病毒为海外来源的风险不断升高。接种两剂疫苗是预防感染麻疹和发展成重症的最有效方法。