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Rabies
The Rhabdo-Virus
Hydrophobia - The Fear of Water |
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© Foogle Business Copyright 2006 " LEARN MORE, BE MORE " |
| Last-Modified: 01/10/06 09:22 Non - Profit Information Base |
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What is Rabies ?
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ALL YOU NEED TO KNOW ABOUT RABIES |
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If you get rabies and do not manage to be treated in time, the disease evolves in three stages: The Prodomal Phase - the lead up over a period of 2 -3 days. The patient may have a fever, vomiting and loss of appetite, headache and pain at the site of the original bite. The autonomic nervous system is affected. This manifests itself as copious salivation and sadness. The Anger Stage. The patient will appear restless and irritable and display signs of aggression. You may appear disorientated and may develop seizures. This stage lasts for about 2 - 4 days. The Neurological Stage or Paralytic Stage. At this stage paralysis develops, usually beginning in the body part that was bitten. You may also suffer from paralysis in the throat and face, making swallowing difficult. increasingly uncontrolled movement, confusion and delirium. The person affected becomes terrified of water and becomes anxious and hyperactive. This stage lasts 2 - 4 days. |
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Bacteria - A diverse group of ubiquitous microorganisms all of which consist of only a single cell that lacks a distinct nuclear membrane and has a cell wall of a unique composition. Bacteria are usually classified by means of Gram’s stain, whether or not they require oxygen - see aerobic respiration; anaerobic respiration, and on the basis of shape. A bacterial cell may be spherical - see coccus, rodlike - see bacillus, spiral - see spirillum, comma-shaped - see vibrio, corkscrew-shaped - see spirochaete, or filamentous, resembling a fungal cell. The majority of bacteria range in size from 0.0001 – 0.0005 mm. Many are motile - self-propelled motion, under appropriate circumstances, using their flagella to swim. They also possess an outer slimy capsule, and produce resistant spores - endospores. In general bacteria reproduce only asexually, by simple division of cells, but a few groups undergo a form of sexual reproduction - conjugation. Bacteria are largely responsible for decay and decomposition of organic matter, producing a cycling of such chemicals as carbon (see carbon cycle), oxygen, nitrogen (see nitrogen cycle), and sulphur. A few bacteria obtain their food by means of photosynthesis (including the blue-green algae, now regarded as bacteria), some are saprophytes, and others are parasites, causing disease. The symptoms of bacterial infections are produced by toxins. |
Virus - A microorganism that can reproduce only in living cells. Viruses consist of a core of either DNA or RNA, surrounded by a protein coat - the capsule, and, in some types, an enclosing envelope. After entering a host cell the viral DNA or RNA, which contains its genes, directs the host cell to assemble numbers of identical viruses. When these are liberated, they may damage or kill the host cell. Viruses are responsible for many diseases in plants and animals. Virus - A particle that is too small to be seen with a light microscope or to be trapped by filters but is capable of independent metabolism and reproduction within a living cell. Outside its host cell a virus is completely inert. A mature virus - a virion, ranges in size from 20 to 400 nm in diameter. It consists of a core of nucleic acid (DNA or RNA) surrounded by a protein coat - the capsid. Some bear an outer envelope - enveloped viruses. Inside its host cell the virus initiates the synthesis of viral proteins and undergoes replication. The new virions are released when the host cell disintegrates. Viruses are parasites of animals, plants, and some bacteria. Viral diseases of animals include the common cold, influenza, smallpox, AIDS, herpes, hepatitis, polio, and rabies - see adenovirus; arbovirus; herpesvirus; HIV; myxovirus; papovavirus; picornavirus; poxvirus. Some viruses are also implicated in the development of cancer - see retrovirus. Plant viral diseases include various forms of yellowing and blistering of leaves and stems - see tobacco mosaic virus. Antibiotics are ineffective against viral diseases but vaccines, if available, provide good protection. |
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Bacteria can do this to your mouth. |
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