Streptococcus mutans

relieve the anxiety caused by the obsessions. All of these areas are directly affected by serotonin. A biological factor of OCD that is still being researched in depth is the effects of streptococcus, this is the bacteria that causes strep throat. As of now, some researchers believe that an infection with streptococcus can cause a development of OCD in children when the body tries to produce antibodies to fight the infection that end up reacting to the basal…

“My child was fine last week, last month – and now I have lost her. This is not my child; what has happened? What do I do? (Sudden & Severe Onset)” For every parent with a child that has an illness, this seems to be a recurring story. Many parents and specialists are desperate for an explanation that makes sense as to why this a child may be fine one day and a completely different child the next, and unfortunately do not find answers. Pediatric Autoimmune Neuropsychiatric Disorders Associated…

non-hemolytic (gamma hemolysis). Growth best resembled the control Staphylococcus epidermidis which is non-hemolytic, indicating that Unknown 15 did not produce hemolysins to lyse RBCs into hemoglobin (1). Therefore, the alpha and beta hemolytic genus Streptococcus was eliminated (5). There was not an inconsistency in this result but, rather, a variability. The species that Unknown 15 was identified to be, by BLAST sequencing, can either demonstrate alpha or gamma hemolytic activity. If it is…

Disease: Strep throat Causative Agent: Streptococcus pyogenes Morphology of Causing Agent: The bacterium S. pyogenes is spherical and emerges in chain-like structures. Gram-staining reveals that this bacterium is gram positive since it shows up dark purple. Transmission: Strep throat is highly contagious and primarily spreads when airborne by coughing or sneezing. Diagnosis: The most common way to diagnose strep throat is by having a trusted doctor perform a rapid antigen test after collecting…

Streptococcus is a genus of non-motile gram-positive cocci classified by serological types (Lancefield groups A through T), by hemolytic action (a, B, Y) when grown on blood agar, and by reaction to bacterial viruses (phage types 1 to 86). The various species occur in pairs, short chains, and chains. Some are facultative aerobes, and some are anaerobic. Some species also are hemolytic, and others are non-hemolytic. Many species cause disease in humans. Streptococcus faecalis, a…

Literature Research: Staphylococcus is a type of Gram-positive bacteria that are commonly found together in random clusters. They are sometimes found in the same habitat as Micrococcus and can be differentiated because of the occurrence of cytochromes (5). They are typically facultative anaerobes or microaerophils and are able to produce catalase, making it possible for them to convert hydrogen peroxide to water to avoid potential damage. The major product of fermentation is lactate and they…

test was used as a selective and differential medium. The bile that was in the medium was selective for streptococci and enterococci and inhibited the growth of Gram-positive staphylococci (Atlas & Snyder, 2015). The test differentiated between Streptococcus bovis group and Enterococcus from other streptococci based on the bacteria’s ability to hydrolyze esculin in the presence of bile. When esculin is hydrolyzed the byproduct reacts with ferric citrate and forms a dark precipitate on the medium…

The title of the lab: Microorganisms and Humans – Infectious Disease Lab Resource The aim of the lab: The aim of the lab was to see if student could detect streptococci causing bacteria in the back of their throats and other objective was to view pathogen causing diseases under the microscope. Activity 1 – Identification of Human Streptococcal Pathogens Materials 1. Glass microscope slides 2. Bunsen burner 3. Inoculating loop 4. Sharpie pen 5. 2 bacitracin discs 6. Sterile saline tubes 7.…

The genera Streptococcus and Enterococcus both consist of Gram-positive cocci that are typically arranged in pairs or chains during growth.5 These bacteria are non-spore forming, facultative anaerobes.1, 5,6 While some are important members of the normal human microbiota, others are pathogenic and cause human diseases.1, 6 Thus far, the classification of these bacteria into major categories has been based on: 1. Serologic specificity of the cell wall group antigens (Lancefield antigens) and…

Introduction Streptococcus pyogenes is a bacteria responsible for a wide range of diseases. They include pharyngitis, impetigo, a skin infection, scarlet fever, rheumatic fever, and toxic shock syndrome (TSS) (Burch, 2008). However, the focus of this research will be on necrotizing fasciitis (NF). Although necrotizing fasciitis is rare, it can be lethal. It is commonly known as “flesh-eating bacteria” (touching base, 2001) for its ability to destroy the skin tissue. For the most part, it is…