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Measles virus - Revision history
2026-04-27T01:24:57Z
Revision history for this page on the wiki
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2025-02-20T01:34:31Z
<p>CSV import</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 01:34, 20 February 2025</td>
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Prab
https://wikimd.org/index.php?title=Measles_virus&diff=5268496&oldid=prev
Prab: CSV import
2024-02-24T16:07:42Z
<p>CSV import</p>
<p><b>New page</b></p><div>'''Measles virus''' is a single-stranded, negative-sense, enveloped RNA virus of the genus ''Morbillivirus'' within the family ''Paramyxoviridae''. It is the cause of [[measles]], a highly contagious disease in humans.<br />
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== Structure ==<br />
The measles virus is approximately 150 to 300 nanometers in diameter. It has a single-stranded RNA genome, which is surrounded by a lipid envelope. The envelope is studded with two types of glycoprotein spikes: hemagglutinin (H) and fusion (F) proteins.<br />
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== Genome ==<br />
The genome of the measles virus is approximately 16 kilobases in length. It encodes eight proteins: nucleocapsid protein (N), phosphoprotein (P), matrix protein (M), fusion protein (F), hemagglutinin (H), large protein (L), and two nonstructural proteins, C and V.<br />
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== Replication ==<br />
The measles virus enters the host cell by binding to the CD150 (SLAM) receptor on the cell surface. The virus then uncoats and releases its RNA genome into the cell. The viral RNA is transcribed into mRNA by the viral RNA-dependent RNA polymerase. The mRNA is then translated into viral proteins by the host cell's machinery. The newly synthesized viral proteins and RNA are assembled into new virus particles, which bud from the cell surface and are released to infect other cells.<br />
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== Pathogenesis ==<br />
The measles virus initially infects the respiratory tract. It then spreads to the lymphatic system and subsequently to other organs. The virus causes a characteristic rash, fever, and other symptoms of measles. Complications can include [[pneumonia]], [[encephalitis]], and [[subacute sclerosing panencephalitis]] (SSPE).<br />
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== Prevention and control ==<br />
Vaccination with the [[measles vaccine]] is the most effective way to prevent infection. The vaccine is usually given as part of the MMR (measles, mumps, rubella) or MMRV (measles, mumps, rubella, varicella) vaccine.<br />
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== See also ==<br />
* [[Measles]]<br />
* [[Measles vaccine]]<br />
* [[Morbillivirus]]<br />
* [[Paramyxoviridae]]<br />
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[[Category:Viral diseases]]<br />
[[Category:Measles]]<br />
[[Category:Paramyxoviridae]]<br />
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