Pathogens

2. A disease caused by protozoans transmitted to humans through the bites of infected mosquitoes.
3. Microscopic single-celled organisms that can cause tuberculosis and strep throat among other diseases.
5. Genetic material contained within a protein coat that can cause diseases like COVID-19 and influenza.
8. Eukaryotic organisms that can be unicellular or multicellular, causing diseases like athlete's foot.
11. A fungal infection that appears on the skin in ring-shaped patches.
12. A bacterial infection that affects the intestinal tract, commonly acquired from contaminated food or water.
13. A contagious bacterial infection that primarily affects the lungs.
14. A common fungal infection that affects the skin of the feet.

1. A cellular pathogen that often lives in water and can cause diseases in humans and animals.
4. A virus that attacks the immune system and can lead to AIDS if not treated.
6. A highly contagious viral infection of the respiratory passages causing fever, severe aching, and catarrh.
7. A fatal brain disease in cattle that can be transmitted to humans, caused by prions.
9. Large, often visible parasites that live in or on their host, such as tapeworms and lice.
10. Infectious proteins that cause neurodegenerative diseases, such as Creutzfeldt-Jakob disease.