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ملف:Measles virus.JPG

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الخلاصة

وصف
English: This thin-section transmission electron micrograph (TEM) revealed the ultrastructural appearance of a single virus particle, or “virion”, of measles virus. The measles virus is a paramyxovirus, of the genus Morbillivirus. It is 100-200 nm in diameter, with a core of single-stranded RNA, and is closely related to the rinderpest and canine distemper viruses. Two membrane envelope proteins are important in pathogenesis. They are the F (fusion) protein, which is responsible for fusion of virus and host cell membranes, viral penetration, and hemolysis, and the H (hemagglutinin) protein, which is responsible for adsorption of virus to cells.

There is only one antigenic type of measles virus. Although studies have documented changes in the H glycoprotein, these changes do not appear to be epidemiologically important (i.e., no change in vaccine efficacy has been observed).

Prior to 1963, almost everyone got measles; it was an expected life event. Each year in the U.S. there were approximately 3 to 4 million cases and an average of 450 deaths, with epidemic cycles every 2 to 3 years. More than half the population had measles by the time they were 6 years old, and 90 % had the disease by the time they were 15. This indicates that many more cases were occurring than were being reported. However, after the vaccine became available, the number of measles cases dropped by 98 % and the epidemic cycles drastically diminished.

Measles virus is rapidly inactivated by heat, light, acidic pH, ether, and trypsin. It has a short survival time (<2 hours) in the air, or on objects and surfaces.
Afrikaans: Die maselsvirus.
Deutsch: TEM-Aufnahme (Transmissions-Elektronen- Mikroskopie) eines Masernvirus
مصدر

This media comes from the Centers for Disease Control and Prevention's Public Health Image Library (PHIL), with identification number #8429.

Note: Not all PHIL images are public domain; be sure to check copyright status and credit authors and content providers.

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مؤلف
  • Photo Credit: Cynthia S. Goldsmith
  • Content Providers(s): CDC/ Courtesy of Cynthia S. Goldsmith; William Bellini, Ph.D.
سماح
(إعادة استخدام الملف ده)		 PD-USGov-HHS-CDC
English: None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.

الترخيص

Public domain
هذه الصُّورة مِن إِنتاج مراكز السيطرة على الأمراض والوقاية منها (CDC)، التَّابِعة لوزارة الصِّحة والخدمات البشريَّة الأمريكيَّة، التقطت أو أُنشئت بصفتها جزءاً مِن عمل المُوظَفين الرَّسميين فيها. ولأَنَّها عملٌ من إِنتاج الحكومة الاتحادية للولايات المُتحدة الأمريكيَّة، فإِنَّ هذه الصُّورة في النِّطاق العامِّ.

Transwiki approved by: w:en:User:Dmcdevit

This image was copied from wikipedia:en. The original description was:

A transmission electron micrograph (TEM) of the ultrastructural appearance of a single virus particle, or “virion”, of measles virus. The measles virus is a w:en:paramyxovirus, of the genus w:en:Morbillivirus. It is 100-200 nm in diameter.

سجلُّ الرَّفع الأصيل

date/time username resolution size edit summary
22:05, 2 July 2006 w:en:User:Joelmills 3060×3081 1.03 MB A <a href="/wiki/TEM" title="TEM">transmission electron micrograph</a> (TEM) of the ultrastructural appearance of a single virus particle, or “virion”, of <a href="/wiki/Measles" title="Measles">measles virus</a>. The measles virus is a <a href="/wiki/Paramyxovirus" title="Paramyxovirus">paramyxovirus</a>, of the genus ''<a href="/wiki/Morbillivirus" title="Morbillivirus">Morbillivirus</a>''. It is 100-200 nm in

Image description page history

link date/time username edit summary
http://en.wikipedia.org/w/index.php?title=Image:Measles_virus.JPG&redirect=no&oldid=61748909 11:11, 11 September 2007 w:en:User:Dmcdevit
http://en.wikipedia.org/w/index.php?title=Image:Measles_virus.JPG&redirect=no&oldid=61748909 22:05, 2 July 2006 w:en:User:Joelmills (A <a href="/wiki/TEM" title="TEM">transmission electron micrograph</a> (TEM) of the ultrastructural appearance of a single virus particle, or “virion”, of <a href="/wiki/Measles" title="Measles">measles virus</a>. The measles virus is a <a href="/wiki/Paramyxovirus" title="Paramyxovirus">paramyxovirus</a>, of the genus ''<a href="/wiki/Morbillivirus" title="Morbillivirus">Morbillivirus</a>''. It is 100-200 nm in)

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دلوقتي15:56، 13 سبتمبر 2007تصغير للنسخة بتاريخ 15:56، 13 سبتمبر 20073,060 × 3,081 (1.03 ميجابايت)BetacommandBotTranswiki approved by: w:en:User:Dmcdevit This image was copied from wikipedia:en. The original description was: A transmission electron micrograph (TEM) of the ultrastructural appearance of a single virus particle, or “virion”, of

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