I am a nurse, and have washed my hands so much with antibacterial soaps that I am now allergic to all of the antibacterial agents used in those soaps. Proper handwashing performed with regular soap has been proven over and over to kill or remove all pathogens by every reputable research organization as effectively as "antibacterial" soaps. Please let your co-worker know that. If they are concerned about a specific "germ", they need to tell you what it is, then let us know. I will help locate documentation if I have time. (Going back to school starting this week, and life is about to hit a whole 'nother level of busy.)