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  2. Viral disease - Wikipedia

    en.wikipedia.org/wiki/Viral_disease

    A viral disease (or viral infection) occurs when an organism's body is invaded by pathogenic viruses, and infectious virus particles (virions) attach to and enter susceptible cells. [1] Examples are the common cold, gastroenteritis and pneumonia. [2]

  3. Viral meningitis - Wikipedia

    en.wikipedia.org/wiki/Viral_meningitis

    Viral meningitis causes inflammation of the meninges. Viral meningitis, also known as aseptic meningitis, is a type of meningitis due to a viral infection. It results in inflammation of the meninges (the membranes covering the brain and spinal cord ). Symptoms commonly include headache, fever, sensitivity to light and neck stiffness.

  4. Common cold - Wikipedia

    en.wikipedia.org/wiki/Common_cold

    The common cold or the cold is a viral infectious disease of the upper respiratory tract that primarily affects the respiratory mucosa of the nose, throat, sinuses, and larynx. [6] [8] Signs and symptoms may appear in as little as two days after exposure to the virus. [6] These may include coughing, sore throat, runny nose, sneezing, headache ...

  5. Virus - Wikipedia

    en.wikipedia.org/wiki/Virus

    Most viral infections of humans and other animals have incubation periods during which the infection causes no signs or symptoms. [ 13 ] : 170 Incubation periods for viral diseases range from a few days to weeks, but are known for most infections.

  6. Viral encephalitis - Wikipedia

    en.wikipedia.org/wiki/Viral_encephalitis

    Viral encephalitis is inflammation of the brain parenchyma, called encephalitis, by a virus. The different forms of viral encephalitis are called viral encephalitides. It is the most common type of encephalitis and often occurs with viral meningitis. Encephalitic viruses first cause infection and replicate outside of the central nervous system ...

  7. Central nervous system viral disease - Wikipedia

    en.wikipedia.org/wiki/Central_nervous_system...

    The CNS viral diseases are caused by viruses that attack the CNS. Existing and emerging viral CNS infections are major sources of human morbidity and mortality. Virus infections usually begin in the peripheral tissues, and can invade the mammalian system by spreading into the peripheral nervous system and more rarely the CNS.

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