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Feb 4, 2023 · Diseases caused by viruses include: COVID-19, caused by a coronavirus called SARS-CoV-2. Chickenpox, caused by the varicella-zoster virus. HIV, caused by the human immunodeficiency virus. Common colds, caused by a range of viruses, but often by rhinoviruses. Medicine that treats viral infections is called an antiviral.
Viral infections. Viruses are another type of tiny microorganism, although they’re even smaller than bacteria. Like bacteria, they’re very diverse and have a variety of shapes and features....
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What is the difference between a virus and a disease?
What is the difference between a virus and a bacteria?
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Viruses are tinier: the largest of them are smaller than the smallest bacteria. All they have is a protein coat and a core of genetic material, either RNA or DNA. Unlike bacteria, viruses can't...
Oct 18, 2022 · A key difference between viruses and bacteria is that antibiotics are effective against bacteria, not viruses. Antibiotics do not work on viruses. Viruses are infectious parasites that require a living host to survive and multiply. They are the smallest germs, whose only components include genetic material encased in protein.
Dec 21, 2020 · Disease Definition. The medical definition of a disease is: "Any abnormal condition of a part or system of an organism resulting from various causes that is characterized by an identifiable set of signs and/or symptoms." Diseases are caused by bacteria, viruses, fungi, or parasites.
- Michele Meleen
- Staff Editor
Viruses are small germs (pathogens) that can infect you and make you sick. They can infect humans, plants, animals, bacteria and fungi. Each one infects only specific types of hosts. Viral infections in humans can cause no symptoms or make you extremely ill. Types of diseases they can cause include: Respiratory illnesses. Diarrhea and vomiting.
Viruses are not living organisms, bacteria are. Viruses only grow and reproduce inside of the host cells they infect. When found outside of these living cells, viruses are dormant. Their “life” therefore requires the hijacking of the biochemical activities of a living cell.