If you must touch your face, scrub your hands, getting under the fingernails and inside all crevices, for 20 to 30 seconds with hot soap and water beforehand,.

• 如果你必须接触脸的话，那么在这之前，你需要用香皂和热水搓洗你的手，把你的手指甲以及所有的指甲缝在热水中洗20到30秒。