Gerba is a consultant to the makers of Purell hand sanitizer, Clorox bleach and the Oreck antibacterial vacuum cleaner, which uses ultraviolet light to kill germs on your rug.

• 格巴是普瑞尔洗手液、含氯漂白剂、奥瑞可抗菌吸尘器生产商的顾问，这家吸尘器厂商用紫外线来杀灭你地毯上的细菌。