ETIOLOGY " Rabies is a bullet shaped Lyssavirus (lyssa meaning frenzy)1 " Rabies is from the family Rhabdovirus.2 " The rabies variant is named after the reservoir host. For example, rabies from a bat is called bat rabies, and rabies from a canine would be referred to as canine rabies2 " Viruses may contain either DNA or RNA and utilize live cells to reproduce.1 " The Rabies virus contains RNA. The Rabies virus also mutates abruptly creating mutant strains of the virus.1 " When the virus enters
Rabies a viral disease to warm blooded animals, its timeline dates back as far to 2300 BC. Research shows that dog owners of Babylonian city of Eshnunna (modern Tell Asmar in Diyala Province, Iraq) were fined for their dogs biting and causing death to people of the city. Rabies causes panic and fear into people in 1759-1762 making it a grim barbaric scene in London where street dogs were shot and given a reward restricting dogs to a month of confinement. In the 1800 hundreds becoming a widespread
Rabies is the oldest infectious disease that is spread between species. Historical evidence of rabies dates from about 2300 BC. The first written record of rabies is in the Eshnunna code (ca.1930 BC), which states that owners of rabid dogs with symptoms of rabies should take preventative measures to keep their dog away from others. If a person were to be bitten and later become ill or die, the owner would be fined heavily. During this time and for many centuries to follow, it was commonplace to kill
Rabies Rabies virus belongs to the Lyssavirus family in which all the members are animal viruses mainly found in bats and are of a bullet-like shape. The virus is usually spread through bites or scratches. Rabies was first suspected in bats in Brazil during the 1910s. In 1931, it was diagnosed for the first time in Trinidad. Rabies is most common in Asia and found more in wild animals than in domestic animals or humans. There has only been one person who miraculously survived rabies even though
Especially these two countries there is a high risk of contracting rabies. Whereas countries like Australia have a low risk because there only one main animal that causes the disease, this can also be treated with the vaccine. Rabies is caused when the lyssavirus invades the central nervous system, causing inflammation in the brain. The virus is spread through the saliva of infected animals these animals can then transmit the virus by biting or scratching another animal or person. Rabies is also transmitted
Rabies is caused by a bullet-shaped virus of the genus Lyssavirus in the family Rhabdoviridae. Rabies is an ancient viral infection of the central nervous system and is considered one of the oldest communicable diseases in humans. The rabies virus was first isolated by Louis Pasteur in 1885 and he was the first scientist to produce the rabies vaccine. Because it is an enveloped virus, rabies is inactivated by several concentrations of formalin, halogens, phenols, alcohols, mineral acids, and other
Parasites and their Virulence Why do some parasites kill the host they depend upon while others coexist with their host? Two prime factors determine parasitic virulence: the manner in which the parasite is transmitted, and the evolutionary history of the parasite and its host. Parasites which have colonized a new host species tend to be more virulent than parasites which have coevolved with their hosts. Parasites which are transmitted horizontally tend to be more virulent than those transmitted
Introduction Rabies is one of the oldest known infectious diseases known to man. Its historical background is related to the rise of civilizations, the growth of cities worldwide, and the contact with wildlife and the domestication of different kinds of animals. The term “rabies” has been around since 3000 B.C., with the name being Latin for “fury”, “madness”, and “rage” (Williamson, 2010). Consequently, rabies have infected many animals and humans for thousands of years, and in this essay
Rabies: Microbiology Structure Rabies virus belongs to Lyssavirus genus, Rhadboviridae family. It is a negative-sense, non-segmented, single-strand RNA and 180 nm long* 75 nm wide bullet-shape virus. All rhabdoviruses have two main structural components: a helical ribonucleoprotein (RNP) complex and a surrounding viral envelope. The rabies virus genome encodes five functional proteins: L (transcriptase), N (nucleoprotein), and NS (transcriptase-associated) protein with viral RNA are composed of the