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ID#:10200
Description:This transmission electron microscopic (TEM) image revealed the presence of numerous intracellular paramyxovirus nucleocapsids, which in this instance, were responsible for a case of the mumps. Paramyxoviruses are members of the family, Paramyxoviridae, and those that cause mumps in humans belong to the genus, Rubulavirus. The virus itself can present itself in a number of morphologic shapes, including spherical, and stand-like, or filamentous, ranging from 150nm to 200nm in diameter, and 1000nm to 10000nm in length. At its core lies a non-segmented, negative-sense RNA genome.
Mumps is a viral illness characterized by swelling of the salivary glands, known as “parotitis”. The incubation period from exposure to onset of symptoms is generally 16 - 18 days, but can range from 12 to 25 days. Transmission is by respiratory droplets, saliva or contact with contaminated fomites. Patients are usually contagious from 1 to 2 days, but occasionally as long as 7 days, before symptom onset, until 9 days after the onset of symptoms.
High Resolution: Click here for hi-resolution image (7.14 MB)
Content Providers(s):CDC/ Dr. Fred Murphy
Creation Date:1975
Photo Credit:
Links:CDC - National Center for Immunization and Respiratory Diseases; Mumps Vaccination
CDC – Nat. Center for Preparedness, Detection, and Control of Infectious Diseases; Div. of Global Migration and Quarantine; Travelers’ Health: Yellow Book: Mumps
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Copyright Restrictions: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.

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