All pathogens - bacteria, viruses, fungi, and parasites - have a frequency. Always keep in mind when using with pets that it can sting or zap them just as it does people, so if you attach it to their body, keep an eye on them or watch for signs that it is bothering them.
Easy to use Zapper. It's lightweight and has great features.
I've had several Terminators before and I like this one the best. The larger copper discs are a nice revision. It's well-designed and easier to use. I can't attest to the benefits yet, but I expect it to do its job.