Virus
simple structure made of a protein coat, genetic material, and protein spikes; (non-living) no cell membrane and can’t reproduce without a host
A virus is a microscopic infectious agent that replicates inside the cell of an organism. It consists of genetic material, either DNA or RNA, that is protected by a protein coat called a capsid. Some viruses also have an outer envelope made up of lipids.
Viruses are not considered living organisms because they cannot survive outside a host cell. They require a host cell to replicate and spread from one organism to another. Once a virus infects a host cell, it uses the host’s cellular machinery to produce more virus particles, often leading to the destruction of the host cell.
Viruses can cause a range of illnesses, from common colds and flu to more severe diseases such as AIDS, Ebola, and COVID-19. The severity of virus-related illnesses depends on factors such as the strength of the virus, the immune response of the host organism, and the overall health of the host.
Prevention of viral infections primarily involves avoiding exposure to the virus, maintaining good hygiene practices such as washing hands regularly, wearing masks to prevent airborne transmission, and getting vaccinated against certain viruses. Treatment for viral infections typically involves supportive care and medication to manage symptoms, as there is no cure for most viral infections.
More Answers:
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Genetic Material: The Basis of Life and the Key to Modern Science