A virus is a tiny, infectious agent that can only reproduce inside the living cells of an organism. Viruses are much smaller than bacteria and far simpler in structure. They lack the machinery needed to replicate on their own and rely on host cells to provide the necessary resources.

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Within medicine, vision science becomes a specialized field focusing on the diagnosis and treatment of disorders affecting the eye and the visual system. Focus: Diagnosing and treating all aspects of eye diseases, injuries, and visual impairments. What are the main features of vision?

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ENT, also known as otolaryngology, is a branch of medicine specializing in the diagnosis and treatment of disorders affecting the ear, nose, throat, head, and neck. ENT doctors are trained surgeons who can perform a variety of procedures to address these conditions. What are the main features of&nbs...

Healthcare, unlike medicine, is a broad umbrella term encompassing various professions and disciplines dedicated to promoting human health and well-being. It includes preventing, diagnosing, and treating diseases, but also focuses on public health initiatives, healthcare systems management, and pati...