Lots of folks sick here also, and they come in the store and breathe! And I get the lysol and bleach out as soon as they leave lol. I have heard of that vinegar prevention. Whatever works I say go for it!!
Same here, I spray the door nobs down inside and out here at home, grand kids and friends seem to keep me busy after they leave my home, you said store , do you work in a store of some kind ?
