Rats are various medium sized rodents. "True rats" are members of the genus Rattus‚ the most important of which to humans are the black rat‚ Rattus rattus‚ and the brown rat‚ R. norvegicus. Many members of other rodent genera and families are also called rats and share many characteristics with true rats. A rat has an average life span of 2-3 years[1]. Rats are distinguished from mice by their size; rats generally have bodies longer than 12 cm (5 in). Contents [hide] * 1 Species and description
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Microbiology Study Guide Chapters 1-6 Chapter 1 Main Themes of Microbiology Microorganisms Most are not Pathogens Prokaryotic-no nucleus or organelles Very simplistic—like bacteria Eukaryotic-has nucleus and organelles like mitochondria Includes fungus‚ and animals Acellular-not even a complete cell Includes viruses and prions like those that cause Mad Cow disease Six main types of microorganisms Bacterium (prokaryotic) Fungus (eukaryotic) Algae (eukaryotic) Virus (acellular)
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Contents Introduction General Precautions Wildlife Diseases of Public Health Concern Directly Transmitted Diseases Rabies Hantavirus Trichinosis Mosquito-borne Diseases Protozoa Helminthiasis Virus Tick-borne Diseases Colorado Tick Fever Rocky Mountain Spotted Fever (Tick-borne Typhus) Lyme Disease Tularemia Relapsing Fever Other Tick-borne Diseases Flea-borne Diseases Plague Murine Typhus Fever Commensal Rodent-borne Diseases Rat-bite Fever Leptospirosis (Weil’s
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(AAP‚ n.d.). In young children bloody diarrhea is a common sign of an invasive enteric infection which may cause severe dehydration and malnourishment leading to bloody diarrhea (AAP‚ n.d.). The common infecting agents are Campylobacter‚ Salmonella‚ Yersinia‚ Shigella and E. coli. While bacterial infections may also be present in older children and inflammatory bowel disorders in younger children‚ older children with bloody diarrhea are more likely to have bloody diarrhea secondary to an inflammatory
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The Mediaeval period was a very well-known era with many achievements like trade and law codes. It was also known as the Dark Ages‚ because of tragic events like the rising of a disease that killed 1/3 of the European and Central Asian populations known as the Black Death. The Black Death was a huge pandemic that took place from 1346-53 mostly taken place in Europe‚ because it was a lethal virus that killed nearly one third of the European population of 25 million people and there was really no knowledge
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The Aral Sea is actually not a sea at all. It is an immense lake‚ a body of fresh water‚ although that particular description of its contents might now be more a figure of speech than practical fact. In the last 30 years‚ more than 60 percent of the lake has disappeared. The sequence of images above‚ acquired by Landsat satellites‚ shows the dramatic changes to the Aral Sea between 1973 and 2000. Beginning in the 1960s‚ farmers and state offices in Uzbekistan‚ Kazakhstan‚ and Central Asian states
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meats or expired dairy products. Bacteria cause most cases of food contamination or poisoning. Some bacteria‚ which contaminate food‚ include Staph Aureus‚ E. coli enteritis‚ salmonella‚ shigella‚ campy lobacter‚ cholera‚ botulism‚ Listeria‚ Yersinia‚ Salmonella‚ Clostridium perfringens‚ Campylobacter‚ Listeria monocytogenes‚ Vibrio parahaemolyticus‚ bacillus cereus‚ and Staphylococcus. Children and elderly ones have a much higher chance of getting deadly symptoms from having bacteria in food
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Boccaccio was an Italian author and poet‚ an important Renaissance humanist in his own right and author of a number of notable works including On Famous Women‚ the Decameron and his poems in the vernacular. Boccaccio grew up in Florence‚ but it was in Naples that Boccaccio began what he considered his true vocation‚ poetry. Works produced in this period include Filostrato‚ a later source for Chaucer’s Troilus and Criseyde‚ Filocolo a prose version of an existing French romance‚ and La caccia di
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of disease because they can indicate human or animal feces. Therefore‚ coliform bacteria are used in water quality testing as indicators of other pathogenic bacteria that commonly are found associated with coliforms‚ e.g.‚ Salmonella‚ Shigella‚ Yersinia‚ Klebsiella and certain strains of E. coli. Figure 1. Breakdown of coliform into categories: total‚ fecal and E. coli (wqm.igsb.uiowa.edu) Figure 1. Breakdown of coliform into categories: total‚ fecal and E. coli (wqm.igsb.uiowa.edu) How
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Europe had suffered one of the worst natural mishaps the world had ever seen. From the wings of Italy through to Ireland‚ its inhabitants had lost their last strand of hope as a plethora of violent behavior and barbarism had befallen upon them. While morality deteriorated and respect for human life seemed impracticable‚ the people of these times were being threatened to their extinction. Their hope in God grew weary as the living learned to expect not the graceful hand of the God they knew‚ but rather
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