Streptococcus Pyogenes Essay

954 words - 4 pages

“Streptococcus Pyogenes is a Gram-positive, nonmotile, nonsporeforming coccus that occurs in chains or in pairs of cells.” (Todar's Online Book of Bacteriology) In history, Streptococcus pyogenes got its ill repute as the cause of puerperal fever, a life-threatening disease that was seen in women after childbirth, until Ignaz Semmelweis exposed that it could be stopped by physicians just washing their hands before each vaginal examination.( Live Strong) S. pyogenes is one of the most frequent pathogens found in humans. An estimate of between 5-15% of humans port the bacterium S. pyogenes without any symptoms of illness. S. pyogenes can be usually found habituating in the respiratory tract ...view middle of the document...

Any contact with these exteriors can lead to spreading of the infection. S. pyogenes can be spread to cattle and then back to humans through raw milk and other food sources like salads and eggs which could also be contaminated. In this case though, cattle only acquire the bacteria and no the diseases or infections that come along with it. (Public Health Agency of Canada) Growth of S. pyogenes is stimulated by incubating in an atmosphere with augmented carbon dioxide. The incubation period is normally from 1 -3 days.
Virulence and Pathogenicity Factors:
Streptococcus pyogenes creates several virulence aspects that provide to its pathogenicity. A bacteria’s pathogenicity is its disease-causing abilities. The bacteria contain a capsule that helps allow it to camouflage itself from getting immersed by white blood cells. This process is known as phagocytosis. S. pyogenes also encloses proteins on its cell wall that permits it to stick to epithelial cells allowing it to produce an infection or disease. S. pyogenes also creates numerous enzymes that give the bacteria the aptitude to terminate tissue and spread. This bacterium also produces a extensive diversity of toxins that can produce minor symptoms. (Live Strong) Streptococcus pyogenes is responsible for many infections like sore throat. Some common symptoms of sore throat include fever and in flammed tonsils and lymph nodes. Other infections caused by this bacterium include scarlet fever, impetigo, and pneumonia. Less known infections that are also caused by S. Pyogenes are mastitis, sepsis, myositis, and meningitis. Every year Streptococcus pyogenes takes the lives or nearly 517,000 humans around the world. (Public Health Agency of Canada)

V. Treatment of Streptococcus pyogenes Infections:

Treatment of choice for S. Pyogenes infections is an antibiotic therapy of penicillin. Although penicillin proves to be very effective for these infections, macrolides are useful for patients who show allergic reactions to penicillin. (Pathology Outlines)
VI. Epidemiology:
Clinical manifestations of S. Pyogenes varies within the...

Find Another Essay On Streptococcus pyogenes

Necrotizing Fasciitis Essay

1228 words - 5 pages streptococcus or Streptococcus pyogenes. The bacterium is stained blue or violet by Gram staining, categorizing it as a Gram-positive bacteria. The organism is immobile and also incapable of forming spores yet occurs in pairs of cells or in chains. The individual cells are 0.6 to 1.0 micrometer in diameter. The Streptococcus’ metabolism undergoes fermentation and is catalase-negative, which helps microbiologists distinguish this species from other

Impetigo Essay

941 words - 4 pages Streptococcus pyogenes, are responsible for most cases of streptococcal infections. The letter A is part of a classification system that separates streptococcal organisms according to the composition of the cell wall. Other illnesses associated with GAS are "strep throat", necrotizing fasciitis, and streptococcal toxic shock syndrome (4,9). Staphylococcus is arranged into clusters of spherical bacteria. They are Gram positive and catalase positive

Group A Streptococcus (Flesh-Eating Bacteria) INTRODUCTION Group A Streptococcus can

627 words - 3 pages Group A Streptococcus (Flesh-Eating Bacteria) INTRODUCTION Group A Streptococcus can normally be found in the throat and on the skin. This strain of Strep causes mild to severe infections such as strep throat. A more virulent strain of GAS causes necrotizing fasciitis. Invasive infections of GAS are found in areas where the bacteria is not usually present.Streptococcus pyogenes infects the host by the following sequence of events. 1.The bacteria

Most important discovery by man

689 words - 3 pages Streptococcus pyogenes was the cause of half of all post-birth deaths[2] and Staphylococcus aureus was fatal in 80% of infected wounds and the tuberculosis and pneumonia bacteria were famous killers. Now, discovery of antibiotics has enabled the medical line of work to treat these communicable diseases [3] together with some that were once life threatening. These are also given to cattle to increase weight gains and for better nourishment [4

Bacterial Species

2319 words - 10 pages unknown matched the control for bacitracin resistance in E.coli. In terms, the resistance depicted no zone of inhibition from the unknown around the bacitracin antibiotic. A positive result would show a zone of inhibition, which must at least 10mm in diameters. A negative control Streptococcus pyogenes allocated the results that were found on the unknown. Motility Unknown #52 was tested for motility and the results that were conducted

Necrotizing Fasciitis

966 words - 4 pages Introduction Necrotizing Fasciitis is a rare but severe type of bacterial infection that spreads rapidly throughout the body while destroying the host’s soft tissue in the process [1]. It is commonly referred to as “flesh-eating bacteria” or “soft tissue gangrene” [3]. The infection can be caused by more than one type of bacteria. It is usually the result of streptococcus bacteria such as Streptococcus pyogenes but can be also due to other

Evolution of Microbial Resistance

1557 words - 7 pages , first showing resistance to penicillin in 1983, vancomycin in 1987, and linezolid in the late 1990’s. Streptococcus pyogenes show low levels of resistance and can usually be treated with a variety of different antibiotics. Some strains of Strep. pyogenes resistant to macrolide antibiotics have emerged, however the pathogen is still sensitive to penicillin drugs. Streptococcus pneumoniae which is responsible for pneumonia, bacteremia and meningitis

Preventing Infections in a Hospital Environment

1289 words - 6 pages hospital surfaces and the estimated duration of their persistence. Type of bacteria, virus, or fungi Duration Clostridium difficile spores (bacteria) Up to 5 months Streptococcus pneumoniae (bacteria) 1 day-20 days Streptococcus pyogenes (bacteria) 3 days-6 months Staphylococcus aureus (bacteria, including MRSA) 7 days-7 months Candida albicans (fungus) 1 day-120 days Acinetobacter spp. 3 days-5 months Norovirus (virus) 8 hours-7 days Influenza

What´s Acute Paronychia?

846 words - 4 pages from usual procedures, such as dishwashing, an injury from a splinter or thorn, onychophagia (nail biting), finger sucking, biting or picking at a hangnail, an ingrown nail, artificial nail application, manicure procedures, or other nail manipulation. This kind of trauma enables bacterial inoculation of the nail and consequential infection, with Staphylococcus aureus being the most common pathogen, although Streptococcus pyogenes, Pseudomonas or

unknown specimen

877 words - 4 pages , and Tetracycline meaning that these could possibly be used in the treatment or in killing my bacteria. My bacteria were resistant to Optochin meaning that it would not work in treating or killing it. On an agar of blood, my bacteria were smear and incubated for several days. After it was analyzed, it was of a yellowish color and is beta hemolysis. This type of hemolysis could be associated with Streptococcus pyogenes. Another important pathogenic

Submitted for Medical/Surgical Nursing course. This is a health sciences essay regarding super infections/antibiotic resistant infections

1199 words - 5 pages when otherwise contaminated. Visitors and staff must also wear personal protective equipment (PPE), like gowns, gloves, and face shield (if needed).Necrotizing FasciitisMost commonly referred to as "flesh eating" bacteria, necrotizing fasciitis is a progressive, rapidly spreading inflammatory infection located in the deep fascia that destroys fascia and fat with secondary necrosis of the subcutaneous tissue. Most commonly caused by Streptococcus

Similar Essays

Streptococcus Pyogenes: Necrotising Fasciitis Essay

2165 words - 9 pages Streptococcus pyogenes is a microorganism from the kingdom of bacteria that is considered to be a unique and extremely complex opportunistic pathogen. The bacterium is especially unique because it has the ability to cause several diseases, ranging from mild to severe outcomes. Streptococcus pyogenes is named so because strepto means chains, coccus is used to describe a spherical shape, and pyogenes is used to describe a pus-forming organism. “S

Acute Morphology Of Streptococcus Pyogenes Essay

1684 words - 7 pages Acute Morphology of Streptococcus pyogenes Abstract: Streptococcus pyogenes is a gram positive coccus bacterium that is extremely common bacteria. This bacterium is part of group A streptococci, which meant that it has a certain type of polysaccharide antigen on its cell surface. It is commonly known as pharyngitis, or strep throat and produces over twenty exotoxins. Even though this bacterium has been around for thousands of years it still

Resistance, Infections, And Defenses Of Streptococcus Pyogenes

1287 words - 5 pages Resistance, Infections, and Defenses of Streptococcus pyogenes Streptococcus pyogenes was the bacteria that used to be the cause of numerous cases of human sicknesses and deaths. As our technology evolved and advanced, our perspective and understanding of this bacteria grew to a point that it is no longer a huge threat. The once blurry details became so clear that it came to the point of which we can identify, locate, and treat the bug

Streptococcus Pyogenes Is More Than Strep Throat

1651 words - 7 pages Streptococcus Pyogenes: More than Strep Throat S. pyogenes infections may vary from mild to life-threatening with a plethora of symptoms due to the many types of infections it causes. This bacterium is responsible for the diseases of pharyngitis, rheumatic fever, impetigo, erysipelas, cellulitis, necrotizing fasciitis, acute poststreptococcal glomerulonephritis, and toxic shock syndrome, just to name a few. Each of these infections has its