The Black Death‚ also known as the Black Plague‚ or the Bubonic Plague killed one third of the population of Europe during its reign in the 13th and 14th centuries. The arrival of this plague set the scene for years of strife and heroism. Leaving the social and Economic aspect in a standstill. The phantom of death became a subject of art‚ music and folklore and it influenced the consciousness of the people. The impact of this mass killer caused enormous chaos and havoc to the medieval society
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SCOPE OF MICROBIOLOGY: What is Microbiology? | � Microbiology is the study of microorganisms� Microorganisms‚ roughly‚ are living things that are too small to be seen with the naked eye� Microorganisms cannot be distinguished phylogenetically from �macroorganisms� (see variety of microorganisms‚ below)� Microbiology is more a collection of techniques: aseptic technique‚ pure culture technique‚ microscopic observation of whole organisms‚ etc.� Microbiologists
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CATALASE Catalase is a common enzyme found in nearly all living organisms exposed to oxygen. It catalyzes the decomposition of hydrogen peroxide to water and oxygen. It is a very important enzyme in reproductive reactions. Likewise‚ catalase has one of the highest turnover numbers of all enzymes; one catalase molecule can convert millions of molecules of hydrogen peroxide to water and oxygen each second. Catalase is a tetramer of four polypeptide chains‚ each over 500 amino acids long. It contains
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Though they have similar origins‚ these diseases are quite different. Bubonic plague is carried by the black rat‚ Rattus rattus‚ and in turn the rat carries the flea Xenopsylla cheopis‚ which then carries the bacteria of the bubonic plague‚ or Yersinia pestis (Mee Jr. para. 3)(Mee Jr. para. 1)(Mee Jr. para. 2). Contrary to the bubonic plague‚ the only natural carriers of smallpox are humans (CDC para. 5). Also differing from the bubonic plague‚ smallpox is caused by a virus (Carr para. 1). Since
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INFECTION CONTROL Pathogen- Infectious agent Colonization- If microorganism is present or invades host‚ grows and/or multiplies but does not cause infection. Communicable disease- if infectious disease can be transmitted from one person to another. -Symptomatic-if pathogens multiply and cause clinical signs/symptoms. -Asymptomatic- if no s/s are present *CHAIN OF INFECTION: 1. An infectious agent or pathogen 2. A reservoir or source for pathogen growth 3. A portal of exit from the
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Garcia 1 Pandemics All Around the World: Emergence and Devastation Many people today wonder when‚ where‚ why‚ and how pandemics occur. Some people do not have any knowledge about pandemics. “According to the World Health Organization (WHO‚ several factors must be present to be considered a pandemic. First‚ the disease must have never appeared before within a population; second‚ the agent that carries the disease—like a fly‚ bacteria‚ air‚ or water—infects one person‚ causing serious illness;
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The Great Plague in London of 1665 Although people proposed a variety of causes for the great plague in London of 1665‚ the effects of the plague were certainly catastrophic. Europe experienced many outbreaks of plague prior to the year of 1665. Unfortunately‚ no one was quite sure what exactly caused the plague‚ which devastated each person who was affected. The effects of the plague on society wreaked havoc on victims both socially and physically. Consequently‚ Londoners were forced to try
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political and social upheavals to mid-fourteenth century European society. The disease was caused by three different plague types‚ consisting of bubonic (60% fatal)‚ pneumonic (100% fatal) and septicaemic (100% fatal); bacterial infections caused by Yersinia Pestis . The first records of Black Death in Europe‚ was October 1347 when a Genoese fleet of ships landed in a Sicilian port in Messina. Within six months the Black Death was rampant in all of Italy which was the most economically sophisticated and
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The disease originated from fleas and small animals such as rats. “It was able to spread considerable distances by rodents on ships” (Benedictow 43). It was caused by a bacterium called Yersinia Pestis which tends to circulate among wild rodents (Beneditow 43). In the early 1300s‚ unusual weather patterns caused the plague bacteria to infect humans (Chester 90). Unlike many other illnesses‚ the Black Death took some time to infect humans but
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She knew it was caused by the bacteria Yersinia Pestis and transmitted by infected fleas that live on rodents such a rats. On the run from the plague in Bath‚ England‚ a bishop and his attendants came to visit the family that Kivrin lived with in Skendgate. Within days of arriving from Bath‚ the bishop’s
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