特拉华州雷霍博斯海滩。-总统乔·拜登离开白宫后，有几次在公共场合没有戴口罩宣布他的新冠肺炎病毒检测呈阳性。白宫表示，民主党现任总统出现了“轻微”症状，而总统的医生表示，拜登将“根据疾病预防控制中心对有症状的个人的指导”进行自我隔离。

　　疾控中心的指导说了什么?白宫怎么说?

　　周三的声明发布后，拜登抵达拉斯维加斯机场，登上空军一号。此前他在拉斯维加斯出现过几次。几个小时后，当他在特拉华州的多佛空军基地走下飞机时，他也没有戴口罩，医学专家说口罩有助于减缓疾病的传播。拜登在行程的两端都被特勤局特工和助手包围着。

　　白宫新闻秘书卡琳·让·皮埃尔说周三的公告81岁的拜登正经历“轻微”症状，将坚持预定计划前往他在Rehoboth Beach的家，在那里他将被隔离。

　　拜登的医生凯文·奥康纳(Kevin O'Connor)在另一份声明中表示，拜登流鼻涕，干咳，感觉“全身不适”他说，拜登正在接受药物Paxlovid的治疗，“并将根据疾病预防控制中心对有症状的个人的指导进行自我隔离。”

　　这疾病控制和预防中心鼓励人们从新冠肺炎或任何其他呼吸系统疾病中康复时佩戴口罩是减少传播的整体策略的一部分，但口罩不是强制性的。

　　疾病预防控制中心建议，如果人们感觉不舒服，就“呆在家里，远离他人”。他们说，当症状开始改善，患者不再发烧时，人们可以恢复正常活动。

　　CDC将口罩描述为预防疾病传播的“附加策略”,但它通常由个人决定是否使用。它称口罩在病人生病时“特别有用”,并建议在康复期间作为一种预防措施。

　　白宫还没有回复要求评论拜登为什么选择不戴口罩的电子邮件。

　　奥康纳说周四拜登仍有来自新冠肺炎的轻微上呼吸道症状。总统没有发烧，他的生命体征保持正常。他正在接受Paxlovid药物治疗。

　　拜登竞选连任的首席副经理昆廷·富尔克斯(Quentin Fulks)周四表示，拜登“感觉良好”，可以打电话和工作。富尔克斯在密尔沃基共和党全国代表大会期间的新闻发布会上发表了讲话。

　　白宫国家安全发言人约翰·柯比在另一次变焦简报会上告诉记者，拜登“正在被他的领导团队保持在适当的速度，当然包括在国家安全方面。”

　　Biden has COVID-19 and didn't wear a mask. CDC's guidelines say he doesn't have to

　　REHOBOTH BEACH, Del. --PresidentJoe Bidendid not wear a face mask in public a couple of times after the White Houseannounced he had tested positive for COVID-19.The White House said the Democratic incumbent was experiencing “mild” symptoms while the president's physician said Biden would self-isolate “in accordance with CDC guidance for symptomatic individuals.”

　　What does the CDC guidance say? What does the White House say?

　　After the announcement on Wednesday, Biden emerged bare-faced from the motorcade after he arrived at the airport in Las Vegas, where he had made several appearances, and boarded Air Force One. He also was not wearing a mask, which medicals professionals have said can help slow the spread of disease, as he stepped off the plane hours later at Dover Air Force Base in Delaware. Biden was surrounded by Secret Service agents and aides on both ends of the trip.

　　White House press secretary Karine Jean-Pierre said inWednesday's announcementthat Biden, 81, was experiencing “mild” symptoms and would stick to prearranged plans to travel to his home in Rehoboth Beach, where he would isolate.

　　Biden's physician, Dr. Kevin O'Connor, said in a separate statement that Biden had a runny nose, dry cough and a feeling of “general malaise.” He said Biden was being treated with the drug Paxlovid “and will be self-isolating in accordance with CDC guidance for symptomatic individuals."

　　TheCenters for Disease Control and Prevention encourages peoplerecovering from COVID-19 or any other respiratory illness to wear masks as part of an overall strategy to reduce transmission, but masks are not mandated.

　　The CDC recommends that people “stay home and away from others” if they’re feeling sick. They say people can resume normal activities when symptoms have started to improve and the person no longer has a fever.

　　The CDC describes masks as an “additional strategy” for preventing disease spread, but it generally leaves it up to individuals to decide whether to use them. It calls masks “especially helpful” when someone is sick and suggests they be used as a precaution during recovery.

　　The White House has not responded to an emailed request for comment about why Biden chose not to wear a mask.

　　O'Connor said Thursdaythat Biden is still experiencing mild upper respiratory symptoms from COVID-19,. The president does not have a fever and his vital signs remained normal. He's being treated with the drug Paxlovid.

　　Quentin Fulks, the principal deputy manager of Biden's reelection campaign, said Thursday that Biden was “feeling fine” and was making calls and doing work. Fulks spoke at a news conference on the sidelines of the Republican National Convention in Milwaukee.

　　White House national security spokesperson John Kirby told reporters during a separate Zoom briefing that Biden was “being kept up to speed as appropriate by his leadership team, and certainly that includes on the national security front.”