[w-] Walter White is in [1] front of the [-(e)n] infirmary where an 瘟 epidemic has broken out. Walter, being a scientist after all, has been recruited to help handle things. He stands in front of the doors, making each patient lined up for entry into the building extract 疒 snot and put it onto a special 皿 dish so Walter can analyze it under a bright portable 日 sun for any signs of 瘟 epidemic disease, before they can enter.