Gerba is the germ guy.He has spent years swiping cotton swabs across the floors of bathrooms, counters, tables and door handles, trying to figure out where the ickiest of germs live.

• Gerba一直在研究细菌，他曾花费好几年的时间来做他的一项研究，既是用棉签擦拭卫生间地板、收银台、桌子、和门把手等以收集标本，看看什么地方最适合细菌的生存。