HIV virus..there is saliva in the faucet?

ok, I called for someone to fix the faucet cause there's a leak in the handler, the one you touch t open it. He opened the handler revealing it's insides and he went to change something. As he was fixing, he spit on the sink and some of it goes to the open handler with it's insides. He pours some water on the handler and to the saliva on the sink. I'm OCD nd have serious phobia from getting HIV please answer my question.