Streptococcus

... which is also called Enterococcus, are a-hemolytic. Among all groups of Streptococci, group A and B are the most common and disease causing in human. The most common form of Streptococcus is group A strep. Group A Streptococcus has a group-specific polysaccharide antigen ("C- substance) with a type-specific protein antigen ("M- protein)(2-pp63). It is also called S. pyogenes. As its name indicates, it is a ... blood stream.""(1-pp150). Meningitis and neonatal sepsis are two diseases that are frequently caused by group B strep. Meningitis can also be caused by another strain of strep call...

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• Grade Level: High School

... fasciitis, a rapidly spreading infection of the skin and underlying tissue caused by S. pyogenes, has been popularly referred to as the "flesh-eating disease." One unique property of Streptococcus is that it has a protein called protein F, which is a "fibronectin binding protein that allows it to adhere to respiratory epithelial cells. This protein is an important virulence factor ... because by binding to the epithelial cells, the organism is able to stick to the cells of the host tightly, and not leave" (MicrobeWiki). Another characteristic of Streptococcus pyogenes is the M protein, ...

• Word Count: 972
• Approx Pages: 4
• Has Bibliography
• Grade Level: Undergraduate

... decay. There are two groups of bacteria responsible for dental caries: Mutans streptococci and Lactobacilli. Some of the most consequential Mutans streptococci species include Streptococcus mutans, Streptococcus sobrinus, Streptococcus rattus, and Streptococcus cricetus. Mutans streptococci initiate approximately 95% of carious lesions because of their previously discussed glucosyltransferase activity, production of extracellular glucans in the presence of ... lower. Lactobacilli mainly function at a pH between 4.5 and 3.7. Many factors may affect the storage, location, and usage of glyc...

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• Grade Level: Undergraduate

... reactions also showed H2S production. The Urea broth reaction was also positive. All of these reactions combined are properties of Proteus Vulgaris. Unknown #128 is the organism Streptococcus Pyogenes. This is concluded from the information gathered from the cultures and tests. There was no growth on the MacConkey, which would indicate gram-positive cocci since ... MacConkey inhibits gram-positive growth. The Catalase test was negative which indicates a Streptococcus sp. The Mannitol salt showed no growth and the Blood agar showed Beta Hemolysis. All of these reactions are properties of ...

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• Grade Level: High School

... even with surgical debridement and antimicrobial drugs. In addition, understanding that not just one form of bacteria is the cause for necrotizing fasciitis, yet streptococcus pyogenes is one of the leading factors and the most common. Streptococcus pyogenes is a member of the group A streptococci, a group of bacteria that are usually responsible for cases of sore throat and skin infections ... had recent surgery or have predisposing conditions like diabetes mellitus, but they can occur apparently spontaneously in otherwise healthy people after a minor injury"(Ramin,Tortora). "Character...

• Word Count: 1124
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• Has Bibliography
• Grade Level: Undergraduate

Article Review The research paper "Upper and Lower Respiratory Tract Infection by Streptococcus Pneumoniae Is Affected by Pneumolysin Deficiency and Differences in Capsule Type " was published on November 26th 2001 by A. Kadioglu, S. Taylor, F. Iannelli, G. Pozzi, T. Mitchell and P. Andrew. The article ... discussed the investigation on how pneumococcal toxin pneumolysin affects the capacity of pneumococci to the infection of both the upper and lower respiratory tract. Pneumoccoccus (pl. pneumococci), also known as streptococcus pneumoniae is a type of bacteria that is a major cause of morbid...

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• Grade Level: Undergraduate

... children and young adults has been kept in check through the use of antibiotics. The causative agent for this disease is found in the Class: Schizomycetes, Order: Eubacteria, Genus: Streptococcus, Species: Streptococcus pyogenes. we will briefly examine the bacterial morphology, disease and medical break throughs in combating this illness. With this in mind, let us examine the morphology of this particular strain ... of bacteria. In general, Streptococci are characterized as gram positive, nonmotile, facultative anaerobes which measure 0.5-1.0 micrometers in diameter. S. pyogenes is sai...

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• Grade Level: High School

... added to enhance the chocolate, ultimately, altering the flavor of the finished product. Several varieties of microorganisms grow in the fermentation heap including Saccharomyces cerevisiae, Candida rugosa, Kluyveromyces marxianus, Lactobacillus, Streptococcus, Acetobacter and Gluconobacter. These microorganisms each need special conditions to incubate and grow. Saccharomyces cerevisiae, Candida rugosa, and Kluyveromyces marxianus grow in the heap when brought into contact with the ... ten to fifteen percent sugar pulp within the cacao bean, fermenting the sugars as mentioned previously...

• Word Count: 1886
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• Grade Level: Undergraduate

... affects their immune system, are all susceptible at an increased risk for acquiring pneumonia. Pneumonia can also follow a bout of influenza. Bacterial pneumonia is caused by two types of bacteria. Streptococcus pneumoniae is one type of bacteria that causes pneumonia. Normally, this bacterial can be found in the upper respiratory tracts of healthy adults. However, it is when this type of ... bacteria enters the lower respiratory tracts that it causes problems. The incubation period for the streptococcus pneumonia bacteria is 1-3 days. Mycoplasma pneumoniae is another type of bacteria t...

• Word Count: 1106
• Approx Pages: 4