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Lyssavirus (from the Greek λύσσα lyssa "rage, fury, rabies" and the Latin vīrus) [1] [2] is a genus of RNA viruses in the family Rhabdoviridae, order Mononegavirales. Mammals, including humans, can serve as natural hosts. [3] [4] The genus Lyssavirus includes the causative agent (rabies virus) of rabies. [5]
In countries where dogs commonly have the disease, more than 99% of rabies cases in humans are the direct result of dog bites. [11] In the Americas, bat bites are the most common source of rabies infections in humans, and less than 5% of cases are from dogs. [1] [11] Rodents are very rarely infected with rabies. [11]
3D still showing rabies virus structure. Rhabdoviruses have helical symmetry, so their infectious particles are approximately cylindrical in shape. They are characterized by an extremely broad host spectrum ranging from plants [citation needed] to insects [citation needed] and mammals; human-infecting viruses more commonly have icosahedral symmetry and take shapes approximating regular polyhedra.
The Partners for Rabies Prevention created the Blueprint for Rabies Control, [10] a freely available practical guide used by countries in their national planning. In 2015, the Global Alliance for Rabies Control established the Pan-African Rabies Control Network, [11] which includes governments from 37 countries. The network unites all sub ...
The human coronavirus NL63 shared a common ancestor with a bat coronavirus (ARCoV.2) between 1190 and 1449 CE. [76] The human coronavirus 229E shared a common ancestor with a bat coronavirus (GhanaGrp1 Bt CoV) between 1686 and 1800 CE. [77] More recently, alpaca coronavirus and human coronavirus 229E diverged sometime before 1960. [78]
After exposure to rabies, there is no contraindication to its use, because the untreated virus is virtually 100% fatal. [11] [13] The first rabies vaccine was introduced in 1885 and was followed by an improved version in 1908. [14] Over 29 million people worldwide receive human rabies vaccine annually. [15]
Anxiety about COVID-19 makes people more willing to "try anything" that might give them a sense of control of the situation, making them easy targets for scams. [5] Many false claims about measures against COVID-19 have circulated widely on social media, but some have been circulated by text, on YouTube, and even in some mainstream media ...
A zoonosis (/ z oʊ ˈ ɒ n ə s ɪ s, ˌ z oʊ ə ˈ n oʊ s ɪ s / ⓘ; [1] plural zoonoses) or zoonotic disease is an infectious disease of humans caused by a pathogen (an infectious agent, such as a bacterium, virus, parasite, or prion) that can jump from a non-human vertebrate to a human. When humans infect non-humans, it is called reverse ...