A gross mess might be lurking invisibly inside your bags if you're not packing smartly, a disease expert has warned.

Packing just one extra thing could save you from having urine, poop and vomit particles ... their clothes or toiletry bag — you’re unlikely to actually get sick from whatever your shoes ...

Dragana Gordic – stock.adobe.com Norovirus most notably causes severe vomiting and diarrhea ... only takes a small amount of exposure to get sick. “The symptoms are intense, awful,” Hirsch ...