Types of viruses in humans

    • What are the most common viruses that humans get?

      Some of the most common or best known viruses include the human immunodeficiency virus (HIV), which is the virus that causes AIDS, the herpes simplex virus, which causes cold sores, smallpox, multiple sclerosis, and the human papilloma virus, now believed to be a leading cause of cervical cancer in adult women.


    • What are the most common types of viruses?

      All humans contract multiple viruses throughout the course of life. The severity of viral illnesses ranges from mild to lethal. Cold, flu, stomach and hepatitis viruses are among the most common types of human viruses encountered worldwide.


    • What are five common human illnesses caused by viruses?

      Major diseases caused by viruses Ebola. It is a disease caused by the virus of homonymous name (Ebola). ... Gastroenteritis. Gastroenteritis is known as the"stomach flu." It consists of severe inflammation of the digestive system , including stomach and intestines. Dengue. ... Yellow Fever. ... Influenza. ... Varicella. ... HIV / AIDS. ... Viral Hepatitis. ... More items...


    • What is the most dangerous virus?

      The most dangerous virus is the Marburg virus. It is named after a small and idyllic town on the river Lahn - but that has nothing to do with the disease itself. The Marburg virus is a hemorrhagic fever virus.


    • [PDF File]Medical Importance: The DNA

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      vviirruusseess l Most DNA viruses are budded off the nucleus. l Most RNA viruses multiply in & are released from the cytoplasm. l Viral infections range from very mild to life ­ threatening. l Many viruses are strictly human in origin, others are zoonoses transmitted by vectors. l Most DNA & a few RNA viruses can become

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    • [PDF File]Human Coronaviruses and Other Respiratory Viruses ...

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      humans worldwide, causing critical problems in public health, especially in children, the elderly and immune-compromised individuals [8–12]. Viruses represent the most prevalent pathogens present in the respiratory tract. Indeed, it is estimated that about 200 di erent viruses (including influenza viruses,

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    • [PDF File]Microbiological Classification of Infectious Diseases

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      • Viruses are acellular, obligate intracellular organisms. • The complete infectious virus is termed a virion. • The virion consists of the specific nucleic acid (DNA or RNA) surrounded by a protein coat (capsid). – Some viruses are enveloped which means that they possess a lipoprotein coat that surrounds the capsid

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    • Influenza virus infections in humans (February 2014)

      The variant terminology is also used for other non-seasonal influenza viruses of a subtype shared with human seasonal influenza viruses, particularly viruses of the H1 and H3 subtypes circulating in swine, when these viruses are detected in humans1. Other animal viruses, e.g.

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    • [PDF File]Viruses and Other Acellular Infectious Agents

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      viruses 1. List the types of approaches used to cultivate viruses, noting which types of viruses are cultivated by each method. 2. Describe three direct counting methods and two indirect counting methods used to enumerate viruses. 3. Outline the events that lead to the formation of a plaque in a lawn of bacterial cells. 4.

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    • [PDF File]Introduction to Viruses - KSU

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      • Viruses have an inner core of nucleic acid surrounded by protein coat known as an envelope • Most viruses range in sizes from 20 – 250 nm • Viruses are inert (nucleoprotein ) filterable Agents • Viruses are obligate intracellular parasites

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    • [PDF File]Viruses - WHO

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      antigenic types of human adenoviruses have been described. Human adenoviruses have been classified into six groups (A–F) on the basis of their physical, chemical and biological properties (WHO 2004). Reservoir Humans. Adenoviruses are ubiquitous in the environment where contamination by human faeces or sewage has occurred. Distribution

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    • [PDF File]VIRAL CYCLES: Four Basic Shapes

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      Viruses have four basic shapes: • helical (rabiesvirus) • icosahedral (poliovirus) • spherical (coronavirus) • complex (bacteriophage) The first three shapes have viruses that can cause human disease. The complex form, the bacteriophage, only attacks bacterial cells. In fact, doctors are looking at bacteriophages as

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    • [DOC File]Still, the authors urge that the 2009 H1N1 virus continue ...

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      8.LS.11 Investigate how viruses and bacteria affect the human body. 1) Explain the life cycle of viruses. 2) Discuss why it is difficult to medically treat a virus.

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    • [DOC File]Chapter 17: Viruses and Bacteria

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      It has two genes from flu viruses that normally circulate in pigs in Europe and Asia and bird (avian) genes and human genes. Scientists call this a "quadruple re-assortment" virus. There are also H1N1 strains that are normal seasonal flu viruses. What are the types of influenza viruses? Types of Influenza: A, B, C

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    • [DOC File]Prokaryotes, Eukaryotes, & Viruses Tutorial

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      In humans, it is a receptor for HIV, enabling the virus to gain entry into its host. CSF. Cerebrospinal fluid. ... A virus is one of several types of hepatitis viruses that cause inflammation that affects the liver's ability to function. The virus is contracted from contaminated …

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    • [DOCX File]Centers for Disease Control and Prevention

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      Chapter 17: Viruses and Bacteria. Section 2: Bacteria – Prokaryotic Cells. Bacteria – Prokaryotic Cells. ... Have different types of _____ in their cell membranes, different types of ribosomes, and some very different gene sequences. Include organisms that live in extremely _____ environments ...

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    • Types of Human Viruses | Healthfully

      Viruses come in a variety of _____ Specificity of a Virus. Usually, specific viruses will infect specific organisms ... Retroviruses are responsible for some types of _____ in animals and humans. One type of retrovirus produces a disease called _____ ...

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    • [DOC File]Chapter 17: Viruses and Bacteria

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      Viruses are obligate intracellular parasites, meaning that they require host cells to reproduce. In the viral life cycle, a virus infects a cell, allowing the viral genetic information to direct the synthesis of new virus particles by the cell. There are many kinds of viruses. Those infecting humans …

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