结束一周的猜测之后，疾病控制中心周五晚上发布了自愿性指南，要求美国人在外出时掩盖口鼻。

特朗普总统表示，他不打算遵循该建议。他在冠状病毒工作队的白宫简报中说：“我不认为我会这样做。”

这项新指南是对越来越多的证据表明人们可以传播冠状病毒而不显示COVID-19症状的回应。外科医生杰罗姆·亚当斯（Jerome Adams）强调说，该措施旨在防止可能感染的人传播病毒，而不是保护穿戴者。

起到保护作用的医疗级N95呼吸器在许多医院中仍然供不应求，并且正在为医疗保健专业人员提供保护。

特朗普说：“疾病预防控制中心建议使用非医用布面罩作为一项额外的自愿性公共卫生措施。” “所以这是自愿的，您不必这样做。他们建议使用一段时间，但这是自愿的。我不认为我会这样做，”特朗普说。

特朗普周五在白宫简报室。（Alex Brandon /美联社）

由于国家医院的口罩供不应求，特朗普周四援引《国防生产法》（Defense Production Act）迫使3M扩大产量。同时，关于是否建议普通市民离开家时使用口罩的争论在联邦政府内部引起了激烈的争论。

特朗普说：“疾病预防控制中心建议美国人佩戴基本的布或织物口罩，既可以在网上购买，也可以在家中简单地用您在家中制作的材料制成。” 这些面罩可以轻松在家中清洗或重复使用。但是我们要强调的是，疾病预防控制中心不建议使用医用级或手术级口罩，我们希望将它们用于我们的辛勤工作的出色医疗人员。”

特朗普表示，他反对自己戴口罩的反对是基于他的感觉以及它将投射到世界上的图像。

“我只是不想自己穿。这是一个建议。他们推荐它。我感觉很好。我只是不想这样做，”特朗普说，并补充道，“我不知道以某种方式坐在那张美丽的Resolute办公桌后面的椭圆形办公室，那张伟大的Resolute办公桌后面，我想我打招呼时戴上口罩总统，总理，独裁者，国王，皇后，我不知道，以某种方式我自己也看不到。也许我会改变主意。”

洛杉矶唐人街的人们戴着口罩。（达米安·多瓦甘尼斯（Damian Dovarganes / AP）

外科医生亚当斯（Adams）承认，政府对使用口罩的建议是“令人困惑的”。亚当斯引用新的研究表明，用总统的话说，这些人“感觉很好”，但仍会传播病毒，“重要的是要知道，我们现在从最近的研究中知道，大部分冠状病毒缺乏症状就是我们所说的“无症状”，即使是那些有症状的人，也就是说他们将来会出现症状，也可以在出现症状之前传播病毒。”

根据白宫的说法，特朗普已经对COVID-19进行了两次阴性测试，该机构周五还宣布，将与总统和副总统会面的人接受冠状病毒的新检测，并在15分钟内得出结果。到现在为止，白宫访客都已经用额头温度计进行了扫描，但是这些温度计只能检测出活跃的COVID-19疾病，不可能被感染。

特朗普说：“我也刚刚接受了测试，所以我认为我没有病毒，因此我不必担心传播它。”

新闻来自雅虎新闻

由网友昼夜颠翻译

原文如下：

CDC gives 'voluntary' guidance on wearing coronavirus masks. Trump isn't volunteering.

Ending a week of speculation, the Centers for Disease Control Friday evening issued voluntary guidance for Americans to cover their mouth and nose when going outside.

President Trump said he didn’t plan to follow the recommendation. “I don’t think that I’m going to be doing it,” he said at a White House briefing by the coronavirus task force.

The new guidance came in response to accumulating evidence that people can spread the coronavirus without showing symptoms of COVID-19. Surgeon General Jerome Adams emphasized that the measure was intended to prevent possibly infected individuals from spreading the virus rather than to protect the wearer.

Medical-grade N95 respirators, which do function as protection, remain in short supply in many hospitals and are being conserved for health care professionals.

“The CDC is advising the use of nonmedical cloth face covering as an additional voluntary public health measure,” Trump said. “So it’s voluntary, you don’t have to do it. And they suggest it for a period of time, but this is voluntary. I don’t think that I’m gong to be doing it,” Trump said.

Trump in the White House briefing room on Friday. (Alex Brandon/AP)

With face masks in short supply in the nation’s hospitals, Trump invoked the Defense Production Act on Thursday to compel 3M to ramp up their production. At the same time, debate has raged inside the federal government over whether to recommend that ordinary citizens use face masks whenever they leave home.

“The CDC is recommending that Americans wear a basic cloth or fabric mask that can be either purchased online or simply made at home with probably material that you’ve made at home,” Trump said. “These face coverings can easily washed at home or reused. But we want to emphasize that the CDC is not recommending the use of medical grade or surgical grade masks and we want that to be used for our great medical people that are working so hard.”

Trump indicated that his opposition to donning a face mask himself was based on how he was feeling as well as the image it would project to the world.

“I just don’t want to wear one myself. It’s a recommendation. They’re recommending it. I’m feeling good. I just don’t want to be doing it,” Trump said, adding, “I don’t know, somehow sitting in the Oval Office behind that beautiful Resolute desk, the great Resolute desk, I think wearing a face mask as I greet presidents, prime ministers, dictators, kings, queens, I don’t know, somehow I don’t see it for myself. Maybe I’ll change my mind.”

People wearing face masks in L.A.'s Chinatown. (Damian Dovarganes/AP)

Surgeon General Adams conceded that the advice given to Americans by the administration on the use of face masks had been “confusing.” Citing new studies showing that people who, in the words of the president, are “feeling good” but spread the virus anyway, Adams said, “It’s important to know that we now know from recent studies that a significant portion of individuals with coronavirus lack symptoms are what we call ‘asymptomatic,’ and that even those who become pre-symptomatic, meaning that they will develop symptoms in the future, can transmit the virus before they show symptoms.”

Trump has twice tested negative for COVID-19, according to the White House, which also announced Friday that people meeting the president and vice president would be given a new test for coronavirus that provides results in 15 minutes. Until now, White House visitors had been scanned with forehead thermometers, but those can only detect active COVID-19 disease, not possible infection.

“I was just tested also, so I assume I don't have the virus so I don't have to worry about spreading it,” Trump said.