Is Amoeba Dangerous To A Child?

Hello doctor s my son is 5 yrs old he eats food very well and the we gave too him are nutritious food, but his weight is not same as the other child same his age, he has only 25kg, and he can t say word properly. What do you think should I do for my son. He already have every two months check up, he has now many medicine/ vitamins. And he seizured at the age of 2yrs old ,sometimes this seizure attack even f he has only 37° fever, since then the doktor gave us medicine maintenance for him not to seizure again. And thank god for almost 3yrs no seizures 2nd questions: Doctor is amoeba dangerous to a child? I m really worried.