As a microbiologist I can say hand sanitizer does absolutely NOTHING to protect you from Noro. The alcohol can’t penetrate its viral outer layer. Please wash your hands every time you can. You should wash for at least 20 seconds. I sing happy birthday song in my head. This is how I know I have washed long enough. Also Clorox wipes do not kill Noro virus on surfaces unless you have contact for at least 15 minutes