RABIES VIRUS

Viral neuronal tracing Viruses in use


The following is a list of viruses currently in use for the purpose of neuronal tracing.

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Weaponized Rabies Virus What Virus Causes Rabies Rabies Virus Life Cycle Rabies Virus Information Rabies Virus Photos How Is Rabies Spread Symptoms of Rabies Rabies Treatment for Humans

Rabies virus

Rabies Virus - Photographs and information on this virus that can be transmitted in saliva.
  1. Wadsworth Center - New York State Department of Health - Information and images regarding; Rabies virus, Herpes virus, Enteroviruses, Norwalk virus, Human Parvovirus B19 and Rotavirus.[

Rabies
TEM micrograph with numerous rabies virions (small dark-grey rod-like particles) and Negri bodies (the larger pathognomonic cellular inclusions of rabies infection)
Virus classification
Group: Group V ((-)ssRNA)
Order: Mononegavirales
Family: Rhabdoviridae
Genus: Lyssavirus
Species: Rabies virus

The rabies virus is a neurotropic virus that causes rabies in humans and animals. Rabies transmission can occur through the saliva of animals and less commonly through contact with human saliva.

The rabies virus has a cylindrical morphology and is the type species of the Lyssavirus genus of the Rhabdoviridae family. These viruses are enveloped and have a single stranded RNA genome with negative-sense. The genetic information is packaged as a ribonucleoprotein complex in which RNA is tightly bound by the viral nucleoprotein. The RNA genome of the virus encodes five genes whose order is highly conserved. These genes code for nucleoprotein (N), phosphoprotein (P), matrix protein (M), glycoprotein (G) and the viral RNA polymerase (L).[1] The complete genome sequences range from 11,615 to 11,966 nt in length.[2]

All transcription and replication events take place in the cytoplasm inside a specialized “virus factory“, the Negri body (named after Adelchi Negri[3]). These are 2–10 µm in diameter and are typical for a rabies infection and thus have been used as definite histological proof of such infection.[4]


Rabies virus Structure


Lyssaviruses have helical symmetry, so their infectious particles are approximately cylindrical in shape. They are characterized by an extremely broad host spectrum ranging from plants to insects and mammals; human-infecting viruses more commonly have cubic symmetry and take shapes approximating regular polyhedra.

The rabies virus has a bullet like shape with a length of about 180 nm and a cross-sectional diameter of about 75 nm. One end is rounded or conical and the other end is planar or concave. The lipoprotein envelope carries knob-like spikes composed of Glycoprotein G. Spikes do not cover the planar end of the virion (virus particle). Beneath the envelope is the membrane or matrix (M) protein layer which may be invaginated at the planar end. The core of the virion consists of helically arranged ribonucleoprotein.


Rabies virus Life cycle


Viral life cycle
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After receptor binding, rabies virus enters its host cells through the endosomal transport pathway. Inside the endosome, the low pH value induces the membrane fusion process, thus enabling the viral genome to reach the cytosol. Both processes, receptor binding and membrane fusion, are catalyzed by the glycoprotein G which plays a critical role in pathogenesis (mutant virus without G proteins cannot propagate).[1]

The next step after entry is the transcription of the viral genome by the P-L polymerase (P is an essential cofactor for the L polymerase) in order to make new viral protein. The viral polymerase can only recognize ribonucleoprotein and cannot use free RNA as template. Transcription is regulated by cis-acting sequences on the virus genome and by protein M which is not only essential for virus budding but also regulates the fraction of mRNA production to replication. Later in infection, the activity of the polymerase switches to replication in order to produce full-length positive-strand RNA copies. These complementary RNAs are used as templates to make new negative-strand RNA genomes. They are packaged together with protein N to form ribonucleoprotein which then can form new viruses.[4]


Rabies virus Infection


In September 1931, Joseph Lennox Pawan of Trinidad in the West Indies, a Government Bacteriologist, found Negri bodies in the brain of a bat with unusual habits. In 1932, Pawan first discovered that infected vampire bats could transmit rabies to humans and other animals.[5][6] For a brief history of some of the controversies surrounding the early discoveries relating to rabies in Trinidad, see the brief history by James Waterman.[7]

From the wound of entry, the rabies virus travels quickly along the neural pathways of the peripheral nervous system. The retrograde axonal transport of the rabies virus to the CNS (Central Nervous System) is the key step of pathogenesis during natural infection. The exact molecular mechanism of this transport is unknown although binding of the P protein from rabies virus to the dynein light chain protein DYNLL1 has been shown.[8] P also acts as an interferon antagonist, thus decreasing the immune response of the host.

From the CNS, the virus further spreads to other organs. The salivary glands located in the tissues of the mouth and cheeks receive high concentrations of the virus, thus allowing it to be further transmitted due to projectile salivation. Fatality can occur from two days to five years from the time of initial infection.[9] This however depends largely on the species of animal acting as a reservoir. Most infected mammals die within weeks, while strains of a species such as the African Yellow Mongoose (Cynictis penicillata) might survive an infection asymptomatically for years.[10]


Rabies virus Antigenicity


Upon viral entry into the body and also after vaccination, the body produces virus neutralizing antibodies which bind and inactivate the virus. Specific regions of the G protein have been shown to be most antigenic in leading to the production of virus neutralizing antibodies. These antigenic sites, or epitopes, are categorized into regions I-IV and minor site a. Previous work has demonstrated that antigenic sites II and III are most commonly targeted by natural neutralizing antibodies.[11] Additionally, a monoclonal antibody with neutralizing functionality has been demonstrated to target antigenic site I.[12] Other proteins, such as the nucleoprotein, have been shown to be unable to elicit production of virus neutralizing antibodies.[13] The epitopes which bind neutralizing antibodies are both linear and conformational.[14]


Rabies virus Evolution


All extant rabies viruses appear to have evolved within the last 1500 years.[15] There are seven genotypes of rabies virus. In Eurasia cases are due to three of these—genotype 1 (classical rabies) and to a lesser extent genotypes 5 and 6 (European bat lyssaviruses type-1 and -2).[16] Genotype 1 evolved in Europe in the 17th century and spread to Asia, Africa and the Americas as a result of European exploration and colonization.

Bat rabies in North America appears to have been present since 1281 AD (95% confidence interval: 906–1577 AD).[17]


Rabies virus Application


Rabies virus is used in research for viral neuronal tracing to establish synaptic connections and directionality of synaptic transmission.


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Just found this in our new spam filter, I freed it :) Not sure why it ended up there tho.

Oh Good!  "Thank You".  The trail of info leads to rabies virus being bio-engineered with Ebola to use as a "global pandemic"  - hence the "Zombies" movies etc. lead by "Illuminati" owned Hollywood.

Good Lord,  their evil knows no bounds.  Sharing this,

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