There are two types of human intestinal parasites, protozoa – single-celled organisms that can multiply inside the human body – and helminths, organisms such as tapeworms, roundworms and ...

Inside the human body, the immune system is confronted with a similar threat ... To move stealthily through their host’s body, these tiny troublemakers—fungi, bacteria, viruses, and parasites—have ...

So far, no preventative vaccination against malaria exists, and its control depends heavily upon antimalarial drugs that kill parasites inside the human body. Malaria has been noted for more than ...