Relevant bibliographies by topics / Among 32 strains of Staphylococcus aureus

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Academic literature on the topic 'Among 32 strains of Staphylococcus aureus'

Author: Grafiati
Published: 4 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Among 32 strains of Staphylococcus aureus"

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Pazlarová, J., S. Purkrtová, J. Babulíková, and K. Demnerová. "Effects of ampicillin and vancomycin on Staphylococcus aureus biofilms." Czech Journal of Food Sciences 32, No. 2 (2014): 137–44. http://dx.doi.org/10.17221/156/2013-cjfs.

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The collection of 23 coagulase-positive Staphylococcus aureus strains isolated mainly from food in the Czech Republic were tested on the ability to form biofilms in the presence of ampicillin and vancomycin. The antimicrobial sensitivity (16 antibiotics) was determined in all strains by the standard disc diffusion method on Mueller-Hinton agar plates (NCCLS). The resistance to ampicillin was found in 16 strains (69.5%), all strains being susceptible to vancomycin. The formation of biofilm was conducted in 96-well, polystyrene microtiter plates COSTAR 3797 in tryptic soy broth (TSB) wi
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Castanheira, Mariana, Amy A. Watters, Jan M. Bell, John D. Turnidge, and Ronald N. Jones. "Fusidic Acid Resistance Rates and Prevalence of Resistance Mechanisms among Staphylococcus spp. Isolated in North America and Australia, 2007-2008." Antimicrobial Agents and Chemotherapy 54, no. 9 (2010): 3614–17. http://dx.doi.org/10.1128/aac.01390-09.

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ABSTRACT Among 4,167 Staphylococcus aureus and 790 coagulase-negative Staphylococcus (CoNS; not S. saprophyticus) isolates collected consecutively from North American and Australian hospitals, only 87 (1.7% overall) isolates displayed a fusidic acid (FA; also known as CEM-102) MIC of ≥2 μg/ml (FA resistance). These strains were further evaluated with a multiplex PCR to amplify the acquired resistance genes fusB, fusC, and fusD. Mutations in fusA and fusE were evaluated in all isolates showing an absence of acquired resistance genes and/or showing FA MIC values of ≥64 μg/ml. S. aureus resistanc
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Drougka, E., A. Foka, D. Posantzis, et al. "Human Staphylococcus aureus lineages among Zoological Park residents in Greece." Open Veterinary Journal 5, no. 2 (2015): 148. http://dx.doi.org/10.5455/ovj.2015.v5.i2.p148.

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Staphylococcus aureus is a part of the microbiota flora in many animal species. The clonal spread of S. aureus among animals and personnel in a Zoological Park was investigated. Samples were collected from colonized and infected sites among 32 mammals, 11 birds and eight humans. The genes mecA, mecC, lukF/lukS-PV (encoding Panton-Valentine leukocidin, PVL) and tst (toxic shock syndrome toxin-1) were investigated by PCR. Clones were defined by Multilocus Sequence Typing (MLST), spa type and Pulsed-Field Gel Electrophoresis (PFGE). Seven S. aureus isolates were recovered from four animals and on
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Lina, Gerard, Alain Quaglia, Marie-Elisabeth Reverdy, Roland Leclercq, François Vandenesch, and Jerome Etienne. "Distribution of Genes Encoding Resistance to Macrolides, Lincosamides, and Streptogramins among Staphylococci." Antimicrobial Agents and Chemotherapy 43, no. 5 (1999): 1062–66. http://dx.doi.org/10.1128/aac.43.5.1062.

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ABSTRACT The relative frequency of 10 determinants of resistance to macrolides, lincosamides, and streptogramins was investigated by PCR in a series of 294 macrolide-, lincosamide-, and/or streptogramin-resistant clinical isolates of Staphylococcus aureus and coagulase-negative staphylococci isolated in 1995 from 32 French hospitals. Resistance was mainly due to the presence ofermA or ermC genes, which were detected in 259 strains (88%), in particular those resistant to methicillin (78% of the strains). Macrolide resistance due to msrA was more prevalent in coagulase-negative staphylococci (14
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D'AMICO, DENNIS J., and CATHERINE W. DONNELLY. "Characterization of Staphylococcus aureus Strains Isolated from Raw Milk Utilized in Small-Scale Artisan Cheese Production." Journal of Food Protection 74, no. 8 (2011): 1353–58. http://dx.doi.org/10.4315/0362-028x.jfp-10-533.

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Staphylococcus aureus is an important agent of bacterial mastitis in milking animals and of foodborne intoxication in humans. The purpose of this study was to examine the genetic and phenotypic diversity, enterotoxigenicity, and antimicrobial resistance of S. aureus strains isolated from raw milk used for the production of artisan cheese in Vermont. Cross-tabulations revealed that the 16 ribotypes identified among the 90 milk isolates examined were typically associated with a specific animal species and that more than half of these ribotypes were unique to individual farms. In general, specifi
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Kotzamanidis, Charalampos, George Vafeas, Virginia Giantzi, et al. "Staphylococcus aureus Isolated from Ruminants with Mastitis in Northern Greece Dairy Herds: Genetic Relatedness and Phenotypic and Genotypic Characterization." Toxins 13, no. 3 (2021): 176. http://dx.doi.org/10.3390/toxins13030176.

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Staphylococcus aureus is the most common mastitis-related pathogen in dairy cattle, goats, and sheep worldwide. However, the population structure and genomic characteristics of mastitis-associated S. aureus in small ruminants are limited. Furthermore, the genotypic and phenotypic characteristics involved in the pathogenicity of S. aureus have been thoroughly defined, yet their association with the severity of mastitis is not fully established. Here, we performed genotyping by pulsed-field gel electrophoresis (PFGE) and spa analyses to assess the genetic diversity and relatedness of 162 S. aure
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Soleha, Tri Umiana, Sutyarso Sutyarso, Asep Sukohar, Sumardi Sumardi, and Sutopo Hadi. "Identification of vanA gene on Vancomycin-Resistant Staphylococcus aureus from Diabetic Ulcer Isolate at Lampung Province." Biomedical and Pharmacology Journal 17, no. 1 (2024): 409–16. http://dx.doi.org/10.13005/bpj/2868.

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Staphylococcus aureus is a type of bacteria that causes an increasing number of infections in hospitals, particularly in diabetic ulcers. Over the last few decades, there has been an alarming increase in the prevalence of pathogen strains of Staphylococcus aureus resistant to antibiotics such as Vancomycin. This study aimed to identify the presence of the vanA gene, which is responsible for the mode of Vancomycin resistance in Staphylococcus aureus Lampung isolate. Ulcer swab was collected from 32 patients with ulcer complications from surgical Installation, Internal Medicine, Home Diabetes Wo
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Gordinskaya, Nataliya A., E. V. Belyaeva, E. V. Boriskina, and D. V. Kryazhev. "Antimicrobial resistance of staphylococci in pediatric hospitals." Clinical Microbiology and Antimicrobial Chemotherapy 22, no. 4 (2020): 272–75. http://dx.doi.org/10.36488/cmac.2020.4.272-275.

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Objective. To determine frequency of Staphylococcus isolation and antimicrobial resistance in hospitalized children with different types of infections. Materials and Methods. Species identification and antimicrobial susceptibility testing in staphylococci were performed on a WalkAway 96 analyzer using Pos Combo type 20 tablets, and mecA gene detection was performed on a RotorGene 6000 amplifier with a set of AmpliSens MRSA-screen FL. Results. A total of 876 strains of staphylococci isolated in children’s hospitals were tested. The species and antibiotic resistance of Staphylococcus aureus and
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LOETO, DANIEL, M. I. MATSHEKA, and B. A. GASHE. "Enterotoxigenic and Antibiotic Resistance Determination of Staphylococcus aureus Strains Isolated from Food Handlers in Gaborone, Botswana." Journal of Food Protection 70, no. 12 (2007): 2764–68. http://dx.doi.org/10.4315/0362-028x-70.12.2764.

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The prevalence, antibiotic resistance, and enterotoxigenic potential of Staphylococcus aureus strains from different anatomical sites on food handlers in Gaborone, Botswana, were determined. Of a total of 200 food handlers tested, 115 (57.5%) were positive for S. aureus. Of the 204 S. aureus isolates, 63 (30.9%), 91 (44.6%), and 50 (24.5%) were isolated from the hand, nasal cavity, and face, respectively, and 43 (21%) of the isolates were enterotoxigenic. The most prevalent enterotoxin was type A, which accounted for 34.9% of all the enterotoxigenic strains, and enterotoxin D was produced by t
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Vyletělová, M., H. Vlková, and I. Manga. "Occurrence and characteristics of methicillin resistant Staphylococcus aureus and methicillin resistant coagulase-negative staphylococci in raw milk manufacturing." Czech Journal of Food Sciences 29, Special Issue (2012): S11—S16. http://dx.doi.org/10.17221/4443-cjfs.

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For monitoring the occurrence of MRSA (methicillin resistant Staphylococcus aureus) and MR-CNS (methicillin resistant coagulase-negative staphylococci), cow’s, goat’s, and sheep’s milks (bulk milks and individual samples) were investigated. Human nasal and throat swabs of the farm staff and nasal swabs of animals were also investigated as well. In total 1729 samples were examined and 634 strains were isolated by means of the cultivation method and used in this study. Generic identification of the staphylococci isolates was done performed by biochemical tests and a
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Dissertations / Theses on the topic "Among 32 strains of Staphylococcus aureus"

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Robb, Andrew R. "An investigation of the occurrence of antibiotic resistance genes among strains of Staphylococcus aureus isolated from animals and their relationship to human strains of Staphylococcus aureus." Thesis, Open University, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.495582.

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Data has emerged which indicates that antimicrobial use in animals has created a reservoir of resistant bacteria and resistance genes that have spread to humans. The aim of this study was to examine the influence of animal antimicrobial use on human strains of S. aureus. Phenotypic and genotypic methods assessed the genetic population structure, potential for host adaptation, frequency of antimicrobial resistance, presence and frequency of genes encoding tetracycline and macrolide resistance and structural variation in tetK genes in S. aureus from animals compared with human clinical strains.
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Book chapters on the topic "Among 32 strains of Staphylococcus aureus"

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Aly, Raza, Henry Shinefield, and Howard Maibach. "Bacterial Interference Among Staphylococcus Aureus Strains." In Bacterial Interference. CRC Press, 2018. http://dx.doi.org/10.1201/9781351070058-2.

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Mukherjee, Riya, Anjali Priyadarshini, Ramendra Pati Pandey, and Vethakkani Samuel Raj. "Antimicrobial Resistance in Staphylococcus aureus." In Staphylococcus aureus [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96888.

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Staphylococcus aureus is a Gram-Positive bacteria that are responsible to cause skin infections and also shows toxic shock syndrome. Several antibiotics were given against the S. aureus infections but eventually, the prevalence of multidrug resistance of Staphylococcus aureus started emerging. Since then Methicillin-resistant Staphylococcus aureus strains (MRSA)were very common which causes nosocomial infections. Microorganisms for the need of the survival undergoes mutational changes either in their chromosomal DNA/RNA which confers the resistance. One of the famous examples is the resistance
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Kumar, Antresh, and Manisha Kaushal. "Progression of β-Lactam Resistance in Staphylococcus aureus." In Insights Into Drug Resistance in Staphylococcus aureus. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.100622.

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Staphylococcus aureus is a notorious human pathogen that causes superficial and invasive infections both in nosocomial and community-acquired settings. The prevalence of staphylococcal infections became more challenging after emerging resistance against topical antibiotics. S. aureus evolved resistance to β-lactam antibiotics due to modification and expression of penicillin-binding proteins (PBP), inactivation of drug by β-lactamase synthesis, limiting uptake of drug by biofilm formation, and reducing uptake by expression of efflux pump. The wave of resistance was first observed in penicillin
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Kumar, Ankur, Ganesh Kumar Verma, Priyanka Singh, et al. "Introduction to Type VII Secretion System (T7SS) of Staphylococcus aureus." In Advances and Perspectives of Infections Caused by Staphylococcus aureus [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.1006161.

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The aim of this chapter was to investigate the genetic diversity of the T7SS across Staphylococcus aureus strains and its role in virulence and interbacterial competition. The ess locus is responsible for encoding the type VII protein secretion system (T7SS) in Staphylococcus aureus. A crucial player within this system is EssC, a membrane-bound ATPase with multiple domains crucial for substrate identification and protein transport via the T7SS. Moreover, it plays a pivotal role in intraspecies competition by secreting toxins capable of depolarising membranes and nucleases, thereby inhibiting t
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Ferraras, M., and G. Menestrina. "Leukocidins and gamma lysins (Staphylococcus sp.)." In Guidebook to Protein Toxins and Their Use in Cell Biology. Oxford University PressOxford, 1997. http://dx.doi.org/10.1093/oso/9780198599555.003.0032.

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Abstract Staphylococcus aureus strains produce two kinds of bi¬ component toxins designated as leukocidins and γ-lysins (Freer and Arbuthnott 1983; Noda and Kato 1991).The Panton-Valentine (PV) leukocidins are two single polypeptide chains of 32 and 34.5 kD, called LukS and LukF respectively (S and F stand for slow and fast eluting during preparation). As single components they are inactive but act synergistically to induce damage of selected white cells: monocytes, macrophages, and polymorphonucleated cells (neutrophils), but not lymphocytes.
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Cetik Yildiz, Songul. "Staphylococcus aureus and Methicillin Resistant Staphylococcus aureus (MRSA) Carriage and Infections." In Infectious Diseases. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.107138.

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Staphylococcus aureus is among the most common opportunistic infections worldwide, as it is found as part of the flora in many parts of the body. S. aureus is the leading cause of nosocomial infections with its ability to rapidly colonize the infected area, high virulence, rapid adaptation to environmental conditions, and the ability to develop very fast and effective resistance even to new generation antibiotics. Methicillin-resistant Staphylococcus aureus (MRSA), first identified in the 1960s, is one of the most successful modern pathogens, becoming an important factor in hospitals in the 19
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Molina-Gallardo, Axel R., Yesica R. Cruz-Martínez, Julieta Orozco-Martínez, Israel Valencia Quiroz, and C. Tzasna Hernández-Delgado. "The Roles of Farnesol and Farnesene in Curtailing Antibiotic Resistance." In Biotechnology and Drug Development for Targeting Human Diseases. BENTHAM SCIENCE PUBLISHERS, 2024. http://dx.doi.org/10.2174/9789815223163124090005.

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In the extensive domain of “biotechnology and drug development for targeting human diseases”, essential oils have long been revered for their therapeutic potential. Among these, farnesol and farnesene stand out due to their pharmacological attributes. As the challenge of antibiotic resistance intensifies, the scientific community is increasingly exploring the potential of these traditional remedies. Using the KirbyBauer agar diffusion method, a qualitative assessment was conducted on two grampositive and two gram-negative bacterial strains. The broth microdilution technique further determined
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Conference papers on the topic "Among 32 strains of Staphylococcus aureus"

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Habibović, Selma, Aleksandra Jovanović, and Snežana Ribis. "Staphylococcus aureus, the most prevalent isolate among surgically treated patients." In Proceedings of the International Congress Public Health - Achievements and Challenges. Institute of Public Health of Serbia "Dr Milan Jovanović Batut", 2024. http://dx.doi.org/10.5937/batutphco24118h.

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Background and Objective: According to available research data, one of the greatest treats for surgical departments is presence of chronical staphylococcal infections in patients admitted for hospital treatment. These infections can be caused by wild-type strains, but also resistant strains of this bacteria gained after frequent hospital treatments. Any of these strains in hospital environment has a plenty possibility for further evolution, which mainly can be modified by proper or inappropriate usage of antibiotics. The goal of our research was to explore the variety of microbes present in wo
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da Motta Junior, Luiz Antônio Silveira, Larissa Corbacho da Silva, Cainan Bueno Silva Leite, et al. "IDENTIFICATION AND SUSCEPTIBILITY TO ANTIBIOTICS OF BACTERIA ISOLATED FROM MASTITIS MILK FROM THE NORTHERN MESOREGION OF THE STATE OF RIO DE JANEIRO." In I Congresso Internacional Multidisciplinar de Ciências da Saúde - I CIMS. New Science Publishers, 2024. http://dx.doi.org/10.56238/i-cims-033.

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Milk production is one of the main activities of Brazilian livestock farming. Among the diseases that cause the greatest economic losses to producers, mastitis is the most recurrent. 805 cows were tested using the “California Mastitis Test” (CMT) on 54 farms in the northern mesoregion of the State of Rio de Janeiro. 45.96% (370) tested positive for subclinical mastitis. Milk samples were then collected and subjected to culture and identification of microorganisms according to routine laboratory tests, and an antibiogram was performed shortly thereafter. In 28.4% (105) of the samples, Staphyloc
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González-García, Samuel, Aida Hamdan-Partida, Anaid Bustos-Hamdan, and Jaime Bustos-Martínez. "Determination of the Pattern of Resistance to Antibiotics among Strains of Staphylococcus aureus Isolated from the Nose or Pharynx." In The 2nd International Electronic Conference on Antibiotics—Drugs for Superbugs: Antibiotic Discovery, Modes of Action and Mechanisms of Resistance. MDPI, 2022. http://dx.doi.org/10.3390/eca2022-12720.

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Mostafavi, Hossein, and Rasul Khandan Bejandi. "Synthesis of Novel 1,3-Indandione Derivatives and Investigation Their Anti-Microbial and Anti-Fungal Activity." In 5th World Conference on Chemistry and Chemical Engineering and 5th World Conference on Advanced Materials, Nanoscience and Nanotechnology. Eurasia Conferences, 2024. https://doi.org/10.62422/978-81-970328-7-5-026.

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1,3 -Indanedione derivatives, which are of wide interest because of their diverse biological and chemical applications. A series of novel 1,3-Indanedione derivatives are synthesized via KNOEVENAGEL condensing reaction mechanism by condensing 1,3-Indanedione with diverse aryl aldehydes using2-hydroxyethyammonium formate as ionic liquid and catalyst. All the synthetic derivatives were fully characterized by spectral analysis data (FT-IR, 1H- 13C-NMR and elemental analysis). This series of 7 compounds were tested for in vitro anti-bacterial activity against Gram- negative Escherichia coli ATCC 25
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Ţurcan, Olga, and T. Syrbu. "Antifungal activity of microalgae isolated from the water of “La Izvor” lake." In 5th International Scientific Conference on Microbial Biotechnology. Institute of Microbiology and Biotechnology, Republic of Moldova, 2022. http://dx.doi.org/10.52757/imb22.40.

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Currently, the attention of researchers is directed towards microalgae and cyanobacteria due to their use as an alternative source of antibiotics. Among the first isolated antimicrobial compounds is chlorelin, from Chlorella sp. which is a mixture of fatty acids that inhibits the growth of both gram-positive and gramnegative bacteria. Eicosapentaenoic acid, hexadecatrienoic acid and palmitoleic acid isolated from Phaeodactylum tricornutum have been shown to possess antimicrobial activity against Staphylococcus aureus gram-positive strain. Thus, the aim of the research was to determine the anti
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Reports on the topic "Among 32 strains of Staphylococcus aureus"

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Leitner, Gabriel, and Naomi Balaban. Novel Immunotherapeutic Agent for the Treatment and Prevention of Staphylococcal Mastitis in Dairy Cows. United States Department of Agriculture, 2009. http://dx.doi.org/10.32747/2009.7709880.bard.

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Staphylococci are the most common and costly mammary disease of dairy cattle worldwide. TRAP, a membrane associated 167AA protein, is highly conserved among staphylococci. The aims of this study were to test the safety and efficacy of recombinant TRAP (rTRAP) vaccine in dairy animals. The vaccine was safe as 2-3 subcutaneous injections of rTRAP (54–100μg) with adjuvant ISA 206 to cows and goats did not lead to any abnormal symptoms of sensitivity to the vaccine. The rTRAP vaccine was immunogenic and caused the induction of a humoral immune response that remained high for at least 160 days post
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Leitner, Gabriel, and Naomi Balaban. Novel Immunotherapeutic Agent for the Treatment and Prevention of Staphylococcal Mastitis in Dairy Cows. United States Department of Agriculture, 2009. http://dx.doi.org/10.32747/2009.7695866.bard.

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Staphylococci are the most common and costly mammary disease of dairy cattle worldwide. TRAP, a membrane associated 167AA protein, is highly conserved among staphylococci. The aims of this study were to test the safety and efficacy of recombinant TRAP (rTRAP) vaccine in dairy animals. The vaccine was safe as 2-3 subcutaneous injections of rTRAP (54–100μg) with adjuvant ISA 206 to cows and goats did not lead to any abnormal symptoms of sensitivity to the vaccine. The rTRAP vaccine was immunogenic and caused the induction of a humoral immune response that remained high for at least 160 days post
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