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# Virus This document describes viruses, their transmission, treatment, and reproduction processes. ## Transmission Methods * **Examples:** * Air * Body fluids * Sexual contact * Animals (e.g., rabies) ## Virus Characteristics * **Non-living entities:** Viruses are not considere...

# Virus This document describes viruses, their transmission, treatment, and reproduction processes. ## Transmission Methods * **Examples:** * Air * Body fluids * Sexual contact * Animals (e.g., rabies) ## Virus Characteristics * **Non-living entities:** Viruses are not considered living organisms as they cannot reproduce independently. * **Simple structure:** Viruses consist of genetic material (DNA or RNA) enclosed in a protein coat. * **Dependent on cells:** Viruses require a host cell to reproduce. * **Importance:** Viruses play a crucial role in the functioning of ecosystems. ## Virus Reproduction * **Endocytosis:** The virus enters a living cell and releases its genetic material. * **Packaging:** The genetic material is packaged into new virus particles. * **Replication:** Copies of viral genetic material are created. * **Translation:** Viral proteins are assembled. ## Treatment * **Vaccination:** A weakened part of the virus is introduced to trigger an immune response so that the body can fight the virus. Such vaccines are designed to weaken the virus, thus protecting the body from disease but without inducing a full-blown infection. * **Immune system:** Antibodies and other immune components help fight the virus once it enters the body. ## Summary The document details the structure, life cycle, and treatment of viruses, emphasizing their dependence on host cells for replication. It also discusses various transmission routes and the importance of virus function in maintaining a healthy ecosystem.