Streptococcus

NECROTIZING FASCIITIS This is an uncommon disease. Necrotizing Fasciitis is also known as a flesh-eating bacteria disease. This affects every 1 out of 4 people. Some symptoms of this disease are weak immune system, consumption of steroid medicines, has surgical cuts or injuries on parts of their body, or had been affected by chicken pox recently. This bacteria destroys and eats up fat, skin and the tissue covering the muscle of a particular part of the body, and can occur anywhere in the body.…

An infection happens when a foreign organism attacks a human body. There are different types of organisms that can cause us harm, for example; Viruses, Bacteria and Fungi. Not all infections are the same; some are mild while some can end up being life threatening. Also, infections can be contagious; they can be transmitted by a variety of ways, for example; skin contact, airborne particles, touching an object that an infected person has touched. One of the very common and effective ways to…

should remind that each of bacteria has specific types of toxins such as Pseudomonas secreted a different type of toxins including the Type III secreted cytotoxins, ExoS, ExoT, and ExoU, which have ability to cause the cell death. However, the Streptococcus pyogenes outputs a different type of toxin known hemolysins, which a play significant role for destroy the red blood cells. In this experiment, we will measure the effect of bacterial cytotoxins on red blood cells by spectrophotometer, which…

A range of bacterial communities including commensals and pathogens colonize nasopharynx. The pharyngeal inhabitant Streptococcus pyogenes (group A streptococcus (GAS)) an adapted human pathogen is a common colonizer of mucous of the mouth, nose and pharynx, is among the many pathogens that most often colonize their host asymptomatically and only occasionally cause disease. Local pharyngeal infection of GAS is manifested as pharyngitis and spread from the local site can cause the systemic…

The objective of this lab was to isolate and identify an unknown Gram positive and Gram negative bacteria through the use of various microbiological techniques. The identification of the genus and species for the unknown culture should be obtained based on the characteristics for Gram positive and Gram negative bacteria. Bacteria are prokaryotic microorganisms that lack a nucleus and therefore all its genetic information is stored in the cytoplasm of the cell. The bacterial cell envelope…

Pneumonia in Children Pneumonia is a serious life threatening illness in children. It is a form of Acute Respiratory Infection (ARI) that affects the lungs that are made up of small sacs called ‘Alveoli’. Hen hey get infected, these alveoli fill with pus and fluids. This makes it difficult for the baby to breathe and limits the oxygen intake. The Scary Statistics: • Pneumonia is the world’s leading killer of children under the age of five. • Each year, pneumonia takes the life of 1.4 million…

and cremoris, both of which are essential in manufacture of many varieties of cheese and other fermented milk products. Lactococcus lactis is related to other lactic acid bacteria such as Lactobacillus acidophilus in our intestinal tract and Streptococcus salivarius in the mouth. However, Lactococcus does not normally colonize human tissues and differs from many other lactic acid bacteria in its pH, salt, and temperature tolerances for growth, which are important characteristics relevant to its…

Normal flora is the colonisation of human tissues by a diverse mixture of microorganisms. This colonisation begins at birth with pioneer species, depending on physiochemical factors. The normal flora inhibits the skin, oral cavity, upper respiratory tract, gastrointestinal tract, urogenital and conjunctival membranes. They are commensal bacteria; getting shelter and nourishment from the host without causing harm (Gould, 2012). To a healthy individual, most normal flora is harmless, however some…

fingertips, bright red lingual papillae with white coat and pharyngitis with tonsillitis. She also had a positive “strep” test (ASO). Scarlet fever is a bacterial infection caused by group A streptococcus which is also known as group A beta-hemolytic streptococci (GABHS) that comes from bacterial family of Streptococcus pyogenes. They are gram positive coccus shaped bacteria. Scarlet fever is also known as scarlatina. The predominant red rash that patients get associated with Scarlet fever is…

Experimental trials were performed by students over a timeframe of three weeks to determine the identity of three unknown bacteria contained in broth medium stored in labeled test tubes that were randomly assigned containing: one Gram positive bacterium, one Gram-negative paracolon, and one Gram-negative coliform (Carson, 2016). The unknown sample assigned in this experiment was #19. After initially streaking the solution on clean streak plates and TSA agar, the identity was determined from a…