The habit of washing your hands each time you handle a newborn is both unrealistic and unnecessary. When you’re changing a diaper, you don’t wash your hands after each and every step. For that matter, the diaper itself isn’t sterile. And hand washing is completely ineffective at preventing the spread of those airborne viruses that cause colds and flus. There is one exception: If you have a boil on your skin or any communicable infection, such as a fever blister on your mouth, then you should wash before any contact with Lucy.
Having said that, hand washing has at least the benefit of dissuading people from handling newborns too much. This is just as well, since Lucy doesn’t particularly want to be passed like a hot potato from one cooing admirer to the next.