My Fergus got a Home Again chip when he was 1yr old. He has a very small head and lots of ruff so he slips collars very easily. Its almost impossible to get one tight enough without choking him. So far there are no problems with rejection or anything else. It's only been there a yr so time will tell. I was there when my vet did it and it didn't seem to bother him at all. I know that if it is scanned you have to have the proper scanner. One scanner does not work on all chips. Hopefully they can come up with a universal scanner in the near future. It sure would make me feel better.
I was reading about this scanner business not too long ago. Apparently, the scanner the Vet has is different from the scanners at the pound. So if your vet installs a chip that can be scanned on his scanner, then the chip would not scan correctly by the scanner at the pound. I think I'll wait until they have made it so a scanner can read every type of microchip. Just getting one kind of microchip will not work everywhere right now.
