YABU.
We actually can't live without, (friendly), bacteria and, (most of us), are well enough equipped, (with a good immune system), to deal with, (most), unfriendly bacteria.
For the records, I would have, (very briefly), rinsed the spoon and put it back in the stew. I would also have wiped the floor with a, (tiny), bit of kitchen roll, just so that no-one would slip in the liquid/possible grease. I wouldn't have considered an anti-bacterial product. (I only ever use those for cleaning the loo, occasionally.)
IMO, we are all using far too many anti-B products which will ultimately make us more ill as they will destroy as many good bacteria as bad.
Have you heard of fecal transplants? (Because you are a nurse you say.) That's when it is considered beneficial to the patient to be given some, (more varied), bacteria for their gut to work better. (With a donor supplying the faeces sample.) Cos some ppl think a lot of our modern illnesses/afflictions could be, (in part), due to us not having enough fecal bacteria, or not having enough of a variety of them.
How do you think our ancestors survived in the wild when we all lived in caves, didn't really wash and ate semi-raw meat?
OK, I will admit that modern farming is making, (raw), poultry a bit more iffy, but I still take quite a slack attitude to bugs and I am hardly ever ill.
On the, (very few), occasions where my body has said "no, can't stomach this so we will need to abort", I have vomitted. But it usually takes just one big vomit and I'm good to go again, with no lasting after-effects. And I tend to comfort myself, (as I do hate having to vomit), with the idea that I have just given my immune system a bit of a workout. (Which is good for it/what it is there for.)
I gave up worrying about how to protect my own babies from 'germs' when I saw what they did when I wasn't looking. For example, I found my daughter, (aged 1), sucking, (in lolly-pop style), the metal plug which she had just removed from the hotel's bidet. (I had only turned my back briefly and that's what happened.) When I examined it, to my horror I saw that it bore accumulated layers of, (someone else's), hair and unidentified 'bidet drain sludge'. How to deal with that with an anti-septic spray, assuming I had one, which I didn't? (She was fine.)
So kids will do these sort of horrible things ie they will happily lick things which will make your own kitchen floor seem wonderfully hygienic in comparison! And maybe they should/we should not worry? Cos I bet that the babies who never meet any bugs in their early yrs will be the 1st to get D&V as soon as they get to school? (So you are only postponing the inevitable by being over-protective?!)