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infectious diseases
| Term | Definition |
|---|---|
| organisms cause infectious diseases such as bacteria, viruses, fungus, protozoans, and parasites. | pathogens |
| infectious diseases | diseases can pass between organisms by different ways. |
| immunity | the ability of the body to defense against diseases. |
| reservoir | the source of disease. |
| non infectious diseases | disease caused by different reasons and don't transfer between organisms |