The phrase "harmful parasites" refers to living organisms that attach themselves to another organism, taking what they need but harming the host organism in the process. These parasites can cause illness or damage to the host. Full definition
Studies have shown that up to 40 % of us may have some sort of harmful parasite in our body. (colonzone.org)
In order for our dogs to maintain healthy skin and a healthy coat, we have to help them by keeping harmful parasites such as fleas at bay. (puppywire.com)
Don't let your pets suffer from harmful parasites like heartworms, fleas and ticks, that can carry dangerous or even fatal diseases. (quartzhillveterinary.com)