CDC认了:布口罩无效!促戴N95提供最大防护
文章来源: 中央社 于
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美国疾病管制暨预防中心(CDC)今天就各式各样口罩阐明立场,终于承认美国民众最常佩戴的布口罩,防护性不比外科等医用口罩,敦促戴N95或KN95口罩以减少COVID-19传播。
COVID-19疫情以来,佩戴口罩始终是美国社会的一个争执话题。
“纽约时报”指出,当初CDC与世卫组织(WHO)耗时数月才愿承认COVID-19会经由飞沫传染,咳嗽和打喷嚏所产生飞沫粒子会在市内悬浮好几小时,而当CDC终于向美国民众做出戴口罩建议时,还强调可戴布口罩,如今终于明确讲出布口罩不若医用口罩。
美联社报导,N95口罩过滤病毒的效果更好但供应短缺,CDC官员先前表示,应优先给医疗人员使用。
▲ 高传染性Omicron引发民众担心,是否该改戴N95。(图/美联社)
CDC今天更新指南,有关N95和KN95口罩供应问题不再,并明确表示正确佩戴N95和KN95口罩能提供最大防护。但官员也提到,有些口罩难以久戴,呼吁民众选择他们会一直佩戴、适合脸型的口罩。
疫情爆发以来,CDC持续修改口罩佩戴建议。
前次更新建议是去年9月,CDC官员“鼓励”民众使用一次性的N95口罩,并表示如果买得到,像是搭乘火车、巴士或飞机很长的时间、照顾病人、或者自己免疫力很差时都建议佩戴。
美国总统拜登昨天宣布,政府正计划免费提供包括N95在内的“高品质口罩”,并表示下周会公布更多细节。白宫表示,联邦政府储备超过7.5亿个N95口罩。
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