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staphylococcus
staph·y·lo·coc·cus S0707700 (stăf′ə-lō-kŏk′əs)n. pl. staph·y·lo·coc·ci (-kŏk′sī, -kŏk′ī) Any of various spherical gram-positive parasitic bacteria of the genus Staphylococcus that usually occur in grapelike clusters and commonly cause skin infections such as cellulitis and impetigo and other infectious conditions and diseases.
staph′y·lo·coc′cal (-kŏk′əl), staph′y·lo·coc′cic (-kŏk′sĭk, -kŏk′ĭk) adj.staphylococcus (ˌstæfɪləʊˈkɒkəs) n, pl -cocci (-ˈkɒkaɪ; US -ˈkɒksaɪ) (Microbiology) any spherical Gram-positive bacterium of the genus Staphylococcus, typically occurring in clusters and including many pathogenic species, causing boils, infection in wounds, and septicaemia: family Micrococcaceae. Often shortened to: staph [C19: from staphylo- (in the sense: like a bunch of grapes) + coccus so called because of their shape] staphylococcal, staphylococcic adjstaph•y•lo•coc•cus (ˌstæf ə ləˈkɒk əs)
n., pl. -coc•ci (-ˈkɒk saɪ) any of several spherical bacteria of the genus Staphylococcus, occurring in pairs, tetrads, and irregular clusters, certain species of which, as S. aureus, are pathogenic. [1885–90; < New Latin < Greek staphyl(ḗ) bunch of grapes + New Latin -coccus -coccus] staph`y•lo•coc′cal (-ˈkɒk əl) staph`y•lo•coc′cic (-ˈkɒk sɪk) adj. staph·y·lo·coc·cus (stăf′ə-lō-kŏk′əs) Plural staphylococci (stăf′ə-lō-kŏk′sī, stăf′ə-lō-kŏk′ī) Any of various bacteria that are normally found on the skin and mucous membranes of warm-blooded animals. One kind of staphylococcus can cause infections in humans, especially in wounds.Thesaurus| Noun | 1. | staphylococcus - spherical Gram-positive parasitic bacteria that tend to form irregular colonies; some cause boils or septicemia or infectionsstaph, staphylococcicocci, coccus - any spherical or nearly spherical bacteriagenus Staphylococcus - includes many pathogenic species |
Translationsstaphylocoquestafilococcostaphylococcus
staphylococcus (stăf'ələkŏk`əs), any of the pathogenic bacteriabacteria
[pl. of bacterium], microscopic unicellular prokaryotic organisms characterized by the lack of a membrane-bound nucleus and membrane-bound organelles. Once considered a part of the plant kingdom, bacteria were eventually placed in a separate kingdom, Monera.
..... Click the link for more information. , parasitic to humans, that belong to the genus Staphylococcus. The spherical bacterial cells (cocci) typically occur in irregular clusters [Gr. staphyle=bunch of grapes]. The term staphylococcus is also sometimes used loosely for the cluster arrangement itself and, broadly, for any bacteria with such a growth pattern. The pigments produced by staphylococci are the basis of the names given to the various strains—those with colors ranging from orange to yellow are designated S. aureus; white strains are known as S. albus. Staphylococci cause abscesses, boils, and other infections of the skin, such as impetigoimpetigo
, contagious skin infection affecting mainly infants and children. The causative organisms are either hemolytic streptococci or staphylococci. The eruption consists of small red spots or blisters that rupture, discharge, and become encrusted.
..... Click the link for more information. . They can also produce infection in any organ of the body (e.g., staphylococcal pneumonia of the lungs). The most common form of food poisoningfood poisoning,
acute illness following the eating of foods contaminated by bacteria, bacterial toxins, natural poisons, or harmful chemical substances. It was once customary to classify all such illnesses as "ptomaine poisoning," but it was later discovered that ptomaines, the
..... Click the link for more information. is brought on by staphylococcus-contaminated food. The staphylococcus organisms also generate toxins and enzymes that can destroy both red and white blood cells. Unlike some other types of bacteria, staphylococci are generally partly or wholly resistant to antibiotic action; this raises serious problems in the treatment and control of staphylococcus infections (see drug resistancedrug resistance,
condition in which infecting bacteria can resist the destructive effects of drugs such as antibiotics and sulfa drugs. Drug resistance has become a serious public health problem, since many disease-causing bacteria are no longer susceptible to previously
..... Click the link for more information. ). The rise of drug-resistant virulent strains of S. aureus, particularly methicillin-resistant S. aureus (MRSA), has led increasing concern in the medical community. Although sick patients with compromised immune systems and children are most susceptible to the strains, which most typically are contracted in hospital, nursing home, and other health-care settings, healthy persons have also been infected. Pharmaceutical companies are working to develop new antibiotics to kill drug-resistant strains of staphylococcus and other bacteria, and a vaccine for S. aureus has been developed. Staphylococcus A genus of bacteria containing at least 28 species that are collectively referred to as staphylococci. Their usual habitat is animal skin and mucosal surfaces. Although the genus is known for the ability of some species to cause infectious diseases, many species rarely cause infections. Pathogenic staphylococci are usually opportunists and cause illness only in compromised hosts. Staphylococcus aureus, the most pathogenic species, is usually identified by its ability to produce coagulase (proteins that affect fibrinogen of the blood-clotting cascade). Since most other species of staphylococci do not produce coagulase, it is useful to divide staphylococci into coagulase-positive and coagulase-negative species. Coagulase-negative staphylococci are not highly virulent but are an important cause of infections in certain high-risk groups. Although Staphylococcus infections were once readily treatable with antibiotics, some strains have acquired genes making them resistant to multiple antimicrobial agents. See Bacteria, Drug resistance, Medical bacteriology Staphylococcus cells are spherical with a diameter of 0.5–1.5 micrometers. Clumps of staphylococci resemble bunches of grapes when viewed with a microscope, owing to cell division in multiple planes. The staphylococci have a gram-positive cell composition, with a unique peptidoglycan structure that is highly cross-linked with bridges of amino acids. See Stain (microbiology) Most species are facultative anaerobes. Within a single species, there is a high degree of strain variation in nutritional requirements. Staphylococci are quite resistant to desiccation and high-osmotic conditions. These properties facilitate their survival in the environment, growth in food, and communicability. In addition to genetic information on the chromosome, pathogenic staphylococci often contain accessory elements such as plasmids, bacteriophages, pathogenicity islands (DNA clusters containing genes associated with pathogenesis), and transposons. These elements harbor genes that encode toxins or resistance to antimicrobial agents and may be transferred to other strains. Genes involved in virulence, especially those coding for exotoxins and surface-binding proteins, are coordinately or simultaneously regulated by loci on the chromosome. See Bacterial genetics, Bacteriophage, Plasmid, Transposons Most Staphylococcus aureus infections develop into a pyogenic (pus-forming) lesion caused by acute inflammation. Inflammation helps eliminate the bacteria but also damages tissue at the site of infection. Typical pyogenic lesions are abscesses with purulent centers containing leukocytes, fluid, and bacteria. Pyogenic infections can occur anywhere in the body. Blood infections (septicemia) can disseminate the organism throughout the body and abscesses can form internally. Certain strains of S. aureus produce exotoxins that mediate two illnesses, toxic shock syndrome and staphylococcal scalded skin syndrome. In both diseases, exotoxins are produced during an infection, diffuse from the site of infection, and are carried by the blood (toxemia) to other sites of the body, causing symptoms to develop at sites distant from the infection. Toxic shock syndrome is an acute life-threatening illness mediated by staphylococcal superantigen exotoxins. Staphylococcal scalded skin syndrome, also known as Ritter's disease, refers to several staphylococcal toxigenic infections. It is characterized by dermatologic abnormalities caused by two related exotoxins, the type A and B exfoliative (epidermolytic) toxins. See Cellular immunology, Toxic shock syndrome Staphylococcal food poisoning is not an infection, but an intoxication that results from ingestion of staphylococcal enterotoxins in food. The enterotoxins are produced when food contaminated with S. aureus is improperly stored under conditions that allow the bacteria to grow. Although contamination can originate from animals or the environment, food preparers with poor hygiene are the usual source. Effective methods for preventing staphylococcal food poisoning are aimed at eliminating contamination through common hygiene practices, such as wearing gloves, and proper food storage to minimize toxin production. See Food poisoning Coagulase-positive staphylococci are the most important Staphylococcus pathogens for animals. Certain diseases of pets and farm animals are very prominent. Staphylococcus aureus is the leading cause of infectious mastitis in dairy animals. Staphylococcus a genus of spherical bacteria. Staphylococcal cells, which are 0.6–0.8 microns in diameter, do not form spores. They are gram-positive and nonmotile and reproduce by dividing in various planes. The newly formed cells remain joined, forming masses similar to a bunch of grapes; they may also occur singly and in pairs. Staphylococci grow well on plain agar and potatoes. Certain species can ferment a variety of carbohydrates and alcohols to form acids. Staphylococci can also produce many toxic products, including hemolysin, which dissolves human erythrocytes; leukocidin, which dissolves leukocytes; and plasmin, which dissolves fibrin clots. Staphylococci are pathogenic, since they cause the suppuration of wounds and give rise to abscesses, furuncles, tonsillitis, inflammatory skin diseases, and septic conditions. Staphylococcus aureus, which produces enterotoxin, may cause severe food poisoning. Staphylococci are present in pus, the surface of healthy skin and mucous membranes, and room dust. A. A. IMSHENETSKII Staphylococcus
Staphylococcus [staf″ĭ-lo-kok´us] a genus of gram-positive bacteria made up of spherical microorganisms, tending to occur in grapelike clusters; they are constantly present on the skin and in the upper respiratory tract and are the most common cause of localized suppurating infections. Pathogenic species include S. au´reus, S. epider´midis, and S. saprophy´ticus.S. aureus is also a cause of food poisoning.
staphylococcus [staf″ĭ-lo-kok´us] any organism of the genus Staphylococcus. adj., adj staphylococ´cal, staphylococ´cic.Staphylococcus (staf'i-lō-kok'ŭs), Avoid the misspelling/mispronunciation Staphlococcus.A genus of nonmotile, nonspore-forming, aerobic to facultatively anaerobic bacteria (family Micrococcaceae) containing gram-positive, spheric cells, 0.5-1.5 mcm in diameter, which divide in more than one plane to form irregular clusters. These organisms are chemoorganotrophic, and their metabolism is respiratory and fermentative. Under anaerobic conditions, lactic acid is produced from glucose; under aerobic conditions, acetic acid and small amounts of CO2 are produced. Coagulase-positive strains produce a variety of toxins and are therefore potentially pathogenic and may cause food poisoning. These organisms are usually susceptible to antibiotics such as the β-lactam and macrolide antibiotics, tetracyclines, novobiocin, and chloramphenicol but are resistant to polymyxin and polyenes. They are susceptible to antibacterials such as phenols and their derivatives, surface-active compounds, salicylanilides, carbanilides, and halogens (chlorine and iodine) and their derivatives, such as chloramines and iodophors. They are found on the skin, in skin glands, on the nasal and other mucous membranes of warm-blooded animals, and in various food products. The type species is Staphylococcus aureus. [staphylo- + G. kokkos, a berry]
staph·y·lo·coc·cus, pl. staph·y·lo·coc·ci (staf'i-lō-kok'ŭs, kok'sī), A vernacular term used to refer to any member of the genus Staphylococcus.staphylococcus (stăf′ə-lō-kŏk′əs)n. pl. staphylo·cocci (-kŏk′sī, -kŏk′ī) Any of various spherical gram-positive parasitic bacteria of the genus Staphylococcus that usually occur in grapelike clusters and commonly cause skin infections such as cellulitis and impetigo and other infectious conditions and diseases.
staph′y·lo·coc′cal (-kŏk′əl), staph′y·lo·coc′cic (-kŏk′sĭk, -kŏk′ĭk) adj.Staph·y·lo·coc·cus (staf'i-lō-kok'ŭs) A genus of nonmotile, non-spore-forming, aerobic to facultatively anaerobic bacteria containing gram-positive, spheric cells that divide in more than one plane to form irregular clusters. Coagulase-positive strains produce a variety of toxins and therefore are potentially pathogenic and may cause food poisoning. They are found on the skin, in skin glands, on the nasal and other mucous membranes of warm-blooded animals, and in various food products. The type species is S. aureus. [staphylo- + G. kokkos, a berry]
staph·y·lo·coc·cus, pl. staphylococci (staf'i-lō-kok'ŭs, -sī) A vernacular term used to refer to any member of the genus Staphylococcus. StaphylococcusS17-893100 (staf?i-lo-kok'us) [Gr. staphyle, a bunch of grapes + coccus] A genus of micrococci belonging to the family Staphylococcaceae, order Bacillales. They are gram-positive and when cultured on agar produce white, yellow, or orange colonies. Some species are pathogenic, causing suppurative conditions and elaborating exotoxins destructive to tissues. Some produce enterotoxins and are the cause of a common type of food poisoning. Staphylococcus aureusA species that is coagulase positive, often part of resident flora of the skin and the nasal and oral cavities. These bacteria may cause suppurative conditions such as boils, carbuncles, and abscesses, as well as hospital-acquired infections, foreign body (prosthetic) infections, and life-threatening pneumonia or sepsis. Various strains of this species produce toxins, including those that cause food poisoning, staphylococcal scalded skin syndrome, and toxic shock syndrome. Some strains also produce hemolysins and staphylokinase. methicillin-resistant Staphylococcus aureus Abbreviation: MRSA
A strain of S. aureus resistant to methicillin. MRSA is resistant to all penicillins. Patients with MRSA infections should be isolated; appropriate mask-gown-glove precautions must be used, depending on the site of the infection. MRSA is an important cause of health care associated infections. Handwashing is essential in caring for patients who harbor this organism. See: isolation; resistance, antibioticMRSA is resistant to most antibiotics and is usually acquired in hospitals or nursing homes, spread from patient to patient by contaminated hands, clothing, and equipment. Infection with MRSA can range from pneumonia to flesh-eating diseases. About 0.5% of people in the U.S. have MRSA bacteria on their skin or in their noses and, although not infected, can still spread the bacteria to those at risk. The CDC estimates that 90,000 people die annually in the U.S. from hospital-acquired infections; about 17,000 of these deaths are due to MRSA. Agencies can now reduce and perhaps stop the spread of MRSA infection by following the guidelines of a pilot program of the Pittsburgh, PA, Veterans Affairs Healthcare System. Patient careThe Pittsburgh guidelines require that all patients have their noses swabbed for MRSA on admission and discharge. Those with MRSA are isolated from other patients and are cared for in protective isolation. Noninvasive equipment is disinfected after each use with these patients, and strict hand hygiene policies are applied. As a result, there was a drop of more than 70% of MRSA cases in surgical care units. The VA, because of the Pittsburgh results, plans to expand the program to more than 150+ VA hospitals nationwide. The CDC suggests screening high-risk patients (those with weak immune systems, intensive care patients, and patients in nursing homes), rather than recommending universal screening. However, Denmark, Finland, and the Netherlands have essentially eradicated MRSA by using universal screening methods. In addition to screening everyone, agencies may provide MRSA carriers with special soap and antibiotic nasal creams. Additionally, a gene-based MRSA test provides results in hours as opposed to days. vancomycin-resistant Staphylococcus aureus Abbreviation: VRSA
A strain of S. aureus resistant to vancomycin that may become a serious nosocomial pathogen. Strains with intermediate resistance to vancomycin have caused life-threatening infections. Staphylococcus capitisA coagulase-negative Staphylococcus species that has been isolated from infections in premature neonates and patients with endocarditis.Staphylococcus capraeA coagulase-negative, DNAse-positive Staphylococcus species first identified in goats. It can infect humans, e.g., in prosthetic joints and injured bones. Staphylococcus epidermidisA coagulase-negative species that is part of the normal flora of the skin. It may colonize, form biofilms on, and infect prosthetic devices and indwelling catheters. Staphylococcus haemolyticusA coagulase-negative Staphylococcus species that primarily infects premature neonates and patients being treated for cancer or other immune-suppressing conditions. The species can also cause meningitis; infections of the skin, soft tissue, or prosthetic joints; or bacteremia. It is frequently resistant to multiple common antibiotics. Staphylococcus hominisA coagulase-negative species frequently recovered from skin. It is not consistently pathogenic for humans. Staphylococcus lugdunensisAn aggressive coagulase-negative Staphyloccus species. It causes infections of soft tissues, the bloodstream, and prostheses. Staphylococcus saprophyticusA species that is the second most common cause of urinary tract infection in young, sexually active females. It is a rare cause of pneumonia.
 STAPHYLOCOCCUS AUREUS: Scalp infectionstaphylococcusS17-893240 (staf?i-lo-kok'us) (-kok'si?) plural.staphylococci [Gr. staphyle, a bunch of grapes + coccus] Any bacterium of the genus Staphylococcus. staphylococcalstaphylococcic (-kok'al) (-kok'sik), adjective See: Staphylococcus; illustrationstaphylococcus One of a wide range of GRAM POSITIVE, spherical bacteria of the genus Staphylococcus , that congregate in grape-like clusters and cause boils, septicaemia and other infections. See also STAPHYLOCOCCAL INFECTIONS.staphylococcus (pl. staphylococci. Greek staphyle, grape) 1 a grape-like cluster of bacterial cells formed when cocci divide randomly (see COCCUS). - a genus of Gram-positive cocci (see GRAM'S STAIN), for example Staphylococcus aureus, which can cause food poisoning and various skin infections.
StaphylococcusAny of several species of spherical bacteria that occur in groups of four or irregular clusters. Staphylococci frequently cause skin infections.Mentioned in: Conjunctivitis, Lymphadenitis, Toxic Shock SyndromeStaph·y·lo·coc·cus, pl. staphylococci (staf'i-lō-kok'ŭs, -kok'sī) A genus of nonmotile, non-spore-forming, aerobic to facultatively anaerobic bacteria that are found on the skin, in skin glands, on the nasal and other mucous membranes of warm-blooded animals, and in various food products. The type species is S. aureus. [staphylo- + G. kokkos, a berry]Patient discussion about StaphylococcusQ. can staphylococcus in woman cause infertility? staphylococcus/infertilityA. Not that I know about. One of the major routes in which bacteria cause infertility in women is through inflammation of the pelvis (PID), but staphylococcus isn't a major cause of this disease.
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Q. what is staph hominis subspec hominis? my grandmother has it and she also has breast ca diabetes is it contagi contagious and what causes itA. 2.Staphylococcus hominis is a bacterium. That lives harmlessly on humans (like many other bacteria) and trouble begins when someone get immuno compromised. your grandmother probably having harsh chemotherapy and radiations. Her immune system is week and cannot defend the body from infections. Unluckily the Staph hominis somehow penetrated and caused an infection. Q. What is MRSA? I’ve heard on the news that some hospitals have a higher rate of MRSA infection. What is MRSA?A.
MRSA - Methicillin-Resistant Staphylococcus Aureus, is a nick name for a specific subtype of bacteria from the Staph bacteria family, which is found resistant to many of the common antibiotics that are in use today. This is due to a mutation development in the Staph bacteria, which allowed it to grow resistance against the killing ingredient in common antibiotics, therefore making it a harder infection to treat and cure. Hospitals keep track of their MRSA infections for epidemiological reasons, in order to get a perspective on bacterial resistance to antibiotics, hoping new and more effective antibiotic medication will be researched. More discussions about Staphylococcusstaphylococcus
Related to staphylococcus: streptococcus, Staph infection, Staphylococcus epidermidisSynonyms for staphylococcusnoun spherical Gram-positive parasitic bacteria that tend to form irregular coloniesSynonymsRelated Words- cocci
- coccus
- genus Staphylococcus
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