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A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Learn about the origins, types, and roles of viruses in human and other life forms, as well as their applications and challenges.
24 paź 2024 · Virus, infectious agent of small size and simple composition that can multiply only in living cells of animals, plants, or bacteria. Viruses possess unique infective properties and thus often cause disease in host organisms. Learn about the history, types, and features of viruses.
Viruses are microscopic organisms that can infect hosts, like humans, plants or animals. They’re a small piece of genetic information inside of a protective shell. Learn about the types, features and functions of viruses and how they cause diseases.
25 sie 2018 · A virus is a chain of nucleic acids (DNA or RNA) that lives in a host cell and uses its machinery to reproduce. Learn about the different types of viruses, how they infect cells, and whether they are living or not.
Viruses are tiny infectious agents that reproduce inside the cells of living hosts. They have genes, a protein coat and sometimes an envelope, and can cause diseases in humans, animals and plants.
A virus is a tiny infectious agent that can only replicate within a host organism. Learn about the diversity of viral genomes, the viral replication process, and the ways to prevent viral diseases.
A virus is a genetic particle that infects living cells and reproduces using their metabolism. Learn about the sizes, types, and complexity of viruses, and how they challenge the definition of life.
