Fleas were terrible here and my Vet recommended I put them on my girls but said to make sure I got them from them because there was a flood of fake Seresto collars going around that could make dogs and people sick and were killing dogs. He said they get theirs directly from Seresto. He said the fakes have a terrible smell to them. The collars I got from the Vet have no odor at all. Mine have had theirs on since October with no problems but I just removed them until I can talk to the Vet.
Hi TC-
The article is alarming.