Dear Doctors, a Tetanus Toxoid injection was administered to me on 01/09/24, that is 2 months, 21 days ago. But the compounder administered the injection in my arm below the deltoid region, in the muscles at back portion of my arm. I don't know if the vaccine goes in muscles in this way and if the vaccine would be effective? Do I need to take a TT shot again? Actually I had shaved with a Gillette Presto razor without washing it with water, just took it out of pack and shaved as in hurry. The pack had dust on it. *If this helps I had taken a TT shot on 26/06/23 as well and that was given properly in deltoid muscles in arm.