Pathogens
Pathogens
Pathogens (/ˈpæθədʒənz/; from the Greek pathos "suffering, passion" and -genēs "producer of") are microorganisms that can cause disease in another organism. Pathogens can be bacteria, viruses, fungi, or parasites.
Types of Pathogens
- Bacteria (/bækˈtɪəriə/; singular: bacterium) are single-celled organisms that can cause diseases such as tuberculosis, salmonella, and syphilis.
- Viruses (/ˈvaɪrəsɪz/; singular: virus) are small infectious agents that can only replicate inside the living cells of an organism. Viruses can cause diseases such as influenza, HIV/AIDS, and COVID-19.
- Fungi (/ˈfʌndʒaɪ/; singular: fungus) are spore-producing organisms that can cause diseases such as athlete's foot, ringworm, and candidiasis.
- Parasites (/ˈpærəsaɪts/; singular: parasite) are organisms that live on or in a host organism and get their food from or at the expense of their host. Parasites can cause diseases such as malaria, giardiasis, and toxoplasmosis.
Transmission of Pathogens
Pathogens can be transmitted in various ways, including through airborne transmission, direct contact, indirect contact, and vector-borne transmission.
Prevention and Control of Pathogens
Prevention and control of pathogens can be achieved through various methods, including vaccination, antibiotic therapy, antiviral therapy, antifungal therapy, and antiparasitic therapy.
External links
- Medical encyclopedia article on Pathogens
- Wikipedia's article - Pathogens
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