Rabies Virus, Lm #1 is a photograph by Science Source which was uploaded on June 1st, 2013.
Rabies Virus, Lm #1
Photomicrograph demonstrates cellular changes associated with rabies encephalitis using an H&E staining technique. When brain tissue from rabies... more
Title
Rabies Virus, Lm #1
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Science Source
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Photograph
Description
Photomicrograph demonstrates cellular changes associated with rabies encephalitis using an H&E staining technique. When brain tissue from rabies virus-infected animals are stained with a histologic stain, such as hematoxylin and eosin, evidence of encephalomyelitis may be recognized by a trained microscopist. The virus infects the central nervous system, causing encephalopathy and ultimately death. Rabies virus belongs to the order Mononegavirales, viruses with a nonsegmented, negative-sense single-stranded RNA ((-) ssRNA) genomes. Within this group, viruses with a distinct "bullet" shape are classified in the Rhabdoviridae family, which includes at least three genera of animal viruses, Lyssavirus, Ephemerovirus, and Vesiculovirus. The genus Lyssavirus includes rabies virus, Lagos bat, Mokola virus, Duvenhage virus, European bat virus 1 & 2 and Australian bat virus. The number of rabies-related human deaths in the United States has declined from more than 100 annually at the turn of the century to one or two per year in the 1990's. Modern day prophylaxis has proven nearly 100% successful. In the United States, human fatalities associated with rabies occur in people who fail to seek medical assistance, usually because they were unaware of their exposure. Early symptoms of rabies in humans are nonspecific, consisting of fever, headache, and general malaise. As the disease progresses, neurological symptoms appear and may include insomnia, anxiety, confusion, slight or partial paralysis, excitation, hallucinations, agitation, hyper-salivation, difficulty swallowing, and hydrophobia (fear of water). Death usually occurs within days of the onset of symptoms.
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June 1st, 2013
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