I worry about really dumb things.
We have a new puppy. We got her 3 weeks ago. She had been tested (negative) for parasites/ worms at intake at the animal shelter, but was wormed anyhow. When we took her in for her booster shots, she was wormed again. At the next visit, wormed again. She's parasite free and had all her shots, been spayed and is now about 14 weeks old.
Hubby was home with her when I went to church last night and didn't walk her. Today I was moving a baby gate and got a handful of dried and mushy poop from where she'd pooped behind the gate he'd then pushed aside. I cleaned it up with an old rag and antibacterial soap, washed my hands numerous times, cleaned under my nails twice and used an aersol surgical scrub I had from a surgery and it will kill MRSA in 5 seconds.
STILL worried about this! No cuts or open spots on my hand and I'm positive the puppy is healthy after all her doc visits and shots
I have never gotten anything I can detect from such touching.
It is interesting to note, I think, that most human/dog disease are not shared, but suppose bacteria can be shared.