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... through the production of substances which inhibit or kill nonindigenous species. ...
Clinical microbiology
Clinical microbiology

... small, it is recommended that at least 30 minutes be spent for such an examination. If organisms are seen, additional procedures sometimes can be used to substantiate immediately a tentative identification. The most common of these are to carry out a coagglutination reaction using latex beads with k ...
chapter three - FreePlace.Org
chapter three - FreePlace.Org

... central American would use mold to treat rashes and infected would. At that time they didn’t understand either diseases or treatment. As time went on, people began to gain some insight of disease. In the 1860 Louis Pasteur Shaw that many disease were caused it bacteria. Later he discovered that we m ...
Staph - IS MU - Masaryk University
Staph - IS MU - Masaryk University

... Now: high concentration of an antimicrobial – so-called antibiotic plug in a venous catheter combination of antimicrobials with different mechanisms of action disruption of extracellular matrix – e.g. with enzymes ...
Anaerobes
Anaerobes

... Obligate anaerobes Gram negative or gram variable Colonize GU tract in low numbers Associated with bacterial vaginosis – Detected in vagina of 6% of controls – As many as 97% of women with bacterial vaginosis ...
Differential media
Differential media

... appearance of media in response to differential use of an ingredient Mohammed laqqan ...
Tumours - Ark Veterinary Centre
Tumours - Ark Veterinary Centre

... TUMOURS General information While not as commonly seen in most birds as they are in dogs and cats, tumours do occur in birds. Unlike the condition in dogs and cats, birds of any age can be afflicted with tumours. What are tumours? Tumours are firm tissue growth swellings that may occur on the body ( ...
Plant growth-promoting rihizobacteria.
Plant growth-promoting rihizobacteria.

... chemical (air pollution and acid rain), and biological processes (Goudie and Parker, 1999). Microorganisms found on rock surfaces, in cracks, and within the pore space of sandstone or granite contribute to the breakdown of rocks. Microbial rock weathering is common in all climate zones, is usually v ...
A Possible Mechanism of Repressing Cheating
A Possible Mechanism of Repressing Cheating

... environmental conditions individuals in an M. xanthus colony aggregate densely and form a raised ``fruiting body'' that consists of a stalk and spores. During this process, many cells commit suicide in order to form the stalk. This ``altruistic suicide'' enables spore formation by other cells. When ...
Chapter 11: Characterizing and Classifying Prokaryotes
Chapter 11: Characterizing and Classifying Prokaryotes

... Vancomycin is last line of defense against antibiotic resistant strains. ...
frogslideshow
frogslideshow

...  Frogs can suffocate from lack of moisture.  The skin of a frog secretes a mucus that aids in keeping their bodies moist.  Frogs shed their skin weekly by stretching themselves out of their old skin. They pull the skin off over their heads and then eat it. ...
CHAPTER 35 Pseudomonas and Other Opportunistic Gram
CHAPTER 35 Pseudomonas and Other Opportunistic Gram

... A number of opportunistic Gram-negative rods of several genera not considered in other chapters are included here. With the exception of Pseudomonas aeruginosa, they rarely cause disease, and all are frequently encountered as contaminants and superficial colonizers. The significance of their isolati ...
Chemical Agents
Chemical Agents

... microorganisms in the blood and other tissues • Asepsis: – any practice that prevents the entry of infectious agents into sterile tissues and thus prevents infection – aseptic techniques: practiced in healthcare; range from sterile methods to antisepsis ...
Cells 02 - Bacteria and Protists Notes
Cells 02 - Bacteria and Protists Notes

... • Wide variety • Most are single-celled • They DO have a nucleus • Live in wet environments (lakes, ponds…) ...
Germ Germ----ometry ometry
Germ Germ----ometry ometry

... Germs are so small that we can’t see them without a microscope. A microscope is a tool we use to make small things look bigger. The germs in the photos below are bacteria. The germs are magnified many times their actual size. Bacteria usually come in 3 different shapes: ROD BALL SPIRAL ...
Mutations of Bacteria From Virus Sensitivity to Virus Resistance
Mutations of Bacteria From Virus Sensitivity to Virus Resistance

... showed that apparent examples of Lamarckian inheritance were actually due to true genetic mutation ...
The Differences between Deodorants and Antiperspirants
The Differences between Deodorants and Antiperspirants

... breakdown of perspiration. They can come in many forms such as sticks, creams, gels, rollons or sprays. They can be applied to different parts of the body, usually the underarms to reduce odors, but can also be used in other areas that may exhibit odor problems, such as the feet. Antiperspirants are ...
Dimorphic fungi
Dimorphic fungi

... Role of fungi in nature There are approximately 70,000 recognized species of fungi. Most are beneficial to humankind. production of food antibiotics and immunosuppressive drugs used as model systems in molecular ...
Distinguishing Bacteria Using Differential Stains
Distinguishing Bacteria Using Differential Stains

... certain groups. Gram staining divides bacteria into gram-negative and gram-positive bacteria, whereas acid-fast divides them into acid-fast or non-acid fast bacteria. It is important to note that gram staining and acid-fast staining techniques are not interchangeable (this means a gram stain test ca ...
Viruses
Viruses

... are pleomorphic). – In humans, pathogenic mycoplasmas cause primary atypical pneumonia and genitourinary infections. – Because they have no cell wall, they are resistant to drugs like penicillin that attack cell walls. ...
Powerpoint - Lighthouse Christian Academy
Powerpoint - Lighthouse Christian Academy

... 1. Many viruses evolve so quickly that they become resistant to antibiotics. 2. Viral infections always directly attack the immune system. 3. Viruses evolve quickly and develop resistance to antiviral drugs. 4. Viruses evolve so quickly that viral DNA switches to RNA. ...
Bacteria
Bacteria

... Heterotrophic bacteria can feed off food, dead matter, or other organisms. ...
INTERVET/SCHERING-PLOUGH ANIMAL HEALTH OTOMAX
INTERVET/SCHERING-PLOUGH ANIMAL HEALTH OTOMAX

... Topical corticosteroids can be absorbed from normal, intact skin. Inflammation can increase percutaneous absorption. Once skin, topical corticosteroids are handled through pharmacokinetic pathways similar to systemically administered corticosteroid Clotrimazole: Clotrimazole is a broad-spectrum anti ...
Maintaining Viability of Aerobic and Anaerobic Bacteria from
Maintaining Viability of Aerobic and Anaerobic Bacteria from

... common pathogens isolated from wounds; Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Bacteroides fragilis and their mixtures were evaluated using the Sigma swab (Medical Wire, UK). Known numbers of bacteria were added to the swab and quantified using serial dilution at 0h, 24h and ...
Microlog Minutes/1
Microlog Minutes/1

... Try initial isolation on plain BUG or TSA media and take the second subculture to BUG with blood. If the organism grows after first subculture on BUG w/ blood, but the growth is poor, let it grow enough to make sure you have a pure culture. Subculture a single colony using a swab that has been dippe ...
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Skin flora



The skin flora, more properly referred to as the skin microbiota, are the microorganisms which reside on the skin. Most research has been upon those that reside upon the 2 square metres of human skin, cf. the human microbiome. The skin microbiome refer to their genomes.Many of them are bacteria of which there are around 1000 species upon human skin from 19 phyla. The total number of bacteria on an average human has been estimated at 1012 (1 trillion). Most are found in the superficial layers of the epidermis and the upper parts of hair follicles.Skin flora is usually non-pathogenic, and either commensal (are not harmful to their host) or mutualistic (offer a benefit). The benefits bacteria can offer include preventing transient pathogenic organisms from colonizing the skin surface, either by competing for nutrients, secreting chemicals against them, or stimulating the skin's immune system. However, resident microbes can cause skin diseases and enter the blood system creating life-threatening diseases particularly in immunosuppressed people.A major nonhuman skin flora is Batrachochytrium dendrobatidis, a chytrid and non-hyphal zoosporic fungus that causes chytridiomycosis, an infectious disease thought to be responsible for the decline in amphibian populations.
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