 |  | 
Protozoa that make us ill are parasites. That is to say they live in us, using us as a means to get food and making us feel ill in the meantime. Examples of protozoa that cause illness in us are the malarial parasite and the parasite that causes amoebic dysentery. We also feel ill because of our body's response to infection. See the Immune System section for more details.
|