I haven’t seen anyone else discuss this and I don’t know the answer but… Do water jets like this not spread worms and other intestinal parasites? I’d be especi

I haven’t seen anyone else discuss this and I don’t know the answer but… Do water jets like this not spread worms and other intestinal parasites? I’d be especially worried about hand held jets in public restrooms and hotel bathrooms. Does anyone have any hard information on that?