I know my dog is deaf bec he is used to follow my voice, consider that before what happen I went out with my pet without collar because he listen my command! Now he is deaf

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Couple of days passed and he is like he was after the surgery, they made anestesia but I suppose he lost the hearing due to ultrasound noise.
Is it possible it happen only to my pet?
I feel sad bec I had a bad feeling before doing it