Novel membrane proteins present in teicoplanin-resistant, vancomycin sensitive, coagulase-negative Staphylococcus spp

1992 ◽  
Vol 30 (6) ◽  
pp. 753-768 ◽  
Author(s):  
M. D. O'Hare ◽  
P. E. Reynolds
Keyword(s):  
Membrane Proteins ◽  
Coagulase Negative Staphylococcus ◽  
Staphylococcus Spp

scholarly journals Some coagulase negative Staphylococcus spp. isolated from buffalo can be misidentified as Staphylococcus aureus by phenotypic and Sa442 PCR methods

2018 ◽  
Vol 11 (1) ◽  
Author(s):  
Camila C. de Almeida ◽  
Lucas J. L. Pizauro ◽  
Glenn A. Soltes ◽  
Durda Slavic ◽  
Fernando A. de Ávila ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Coagulase Negative Staphylococcus ◽  
Staphylococcus Spp

scholarly journals Characterization of mecC gene-carrying coagulase-negative Staphylococcus spp. isolated from various animals

2019 ◽  
Vol 230 ◽  
pp. 138-144 ◽  
Author(s):  
Igor Loncaric ◽  
Anna Kübber-Heiss ◽  
Annika Posautz ◽  
Werner Ruppitsch ◽  
Sarah Lepuschitz ◽  
...  
Keyword(s):  
Coagulase Negative Staphylococcus ◽  
Staphylococcus Spp

scholarly journals Effects of Dietary Vibroactivated Clinoptilolite Supplementation on the Intramammary Microbiological Findings in Dairy Cows

Animals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 202 ◽  
Author(s):  
Dražen Đuričić ◽  
Tomislav Sukalić ◽  
Franjo Marković ◽  
Predrag Kočila ◽  
Ivona Žura Žaja ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Treated Group ◽  
Control Group ◽  
Coagulase Negative Staphylococcus ◽  
Intramammary Infection ◽  
Streptococcus Uberis ◽  
Causative Agents ◽  
Amoxicillin Clavulanic Acid ◽  
Staphylococcus Spp ◽  
Arcanobacterium Pyogenes

The aim of this study was to determine the effects of dietary vibroactivated clinoptilolite supplementation on the intramammary microbiological findings in dairy cows, causative agents of potential intramammary infection, and their sensitivity to antibiotics. Cows (n = 78) were randomly divided into two groups: CPL-treated group that received clinoptilolite (CPL) in-feed (n = 38), i.e., 50 g natural powdered zeolite CPL, twice daily from the seventh month of pregnancy to 75 days after calving, and the control group (CON) of untreated cows (n = 40). Milk samples were taken from each cow on days 7, 25, 45, and 75 postpartum. The following causative pathogens were isolated in 86 udder quarters: Staphylococcus aureus in 5.81% of positive samples, Staphylococcus spp. 9.32%, coagulase-negative Staphylococcus (CNS) 22.09%, Streptococcus uberis 13.95%, Streptococcus agalactiae 1.16%, Streptococcus sp. 3.49%, Escherichia coli 8.13%, Enterococcus spp. 6.98%, Corynebacterium spp. 11.63%, Pasteurella sp. 10.47%, Serratia spp. 2.33%, and Arcanobacterium pyogenes, Citrobacter sp., Prototheca sp., and yeasts each in 1.16% of samples. Additionally, 3.87% of environmental microflora samples (n = 47) and 89.06% of udder samples (n = 1083) were bacteriologically negative. The most effective antibiotics were cefoperazone and amoxicillin-clavulanic acid, while cloxacillin and tetracycline were the least effective antibiotics in both groups. In the clinoptilolite supplemented (CPL) group (n = 38) of 14 cows, nine causative agents of mastitis were isolated in 27 quarters, while in the control (CON) group (n = 40) of 24 cows, 13 causative agents of mastitis were isolated in 59 quarters. Cows from the CON group had a 1.96 times higher risk of intramammary infection than cows from the CPL group during the observation period (odds ratio = 1.96, p = 0.0031; 95% CI = 1.2570–3.0770).

Multidrug resistant coagulase-negative Staphylococcus spp. isolated from cases of chronic rhinosinusitis in humans. Study from Poland

2021 ◽  
Keyword(s):  
Chronic Rhinosinusitis ◽  
Pathogenic Bacteria ◽  
Medical Center ◽  
Multidrug Resistant ◽  
Coagulase Negative Staphylococcus ◽  
Coagulase Negative Staphylococci ◽  
Methicillin Resistant ◽  
Resistant Strains ◽  
Ethmoid Sinuses ◽  
Staphylococcus Spp

Abstract For many years, coagulase-negative staphylococci (CoNS) have been considered non-pathogenic bacteria. However, recently, CoNS are becoming more common bacteriological factors isolated from cases of chronic rhinosinusitis in humans. Moreover, most of them represent the multidrug-resistant or/and methicillin-resistant profile, which significantly increases the therapeutic difficulties. The aim of the study was to characterize profile of resistant coagulase-negative staphylococci isolated from cases of chronic rhinosinusitis in patients treated in a Medical Center in Warsaw in 2015–2016. The study material was derived from patients with diagnosed chronic rhinosinusitis treated at the MML Medical Center in Warsaw. The material was obtained intraoperatively from maxillary, frontal, and ethmoid sinuses. In total, 1,044 strains were isolated from the studied material. Coagulase-negative staphylococci were predominant, with the largest share of Staphylococcus epidermidis. Isolated CoNS were mainly resistant to macrolide, lincosamide, and tetracycline. Among the S. epidermidis strains, we also showed 35.6% of MDR and 34.7% of methicillin-resistant strains. The same values for other non-epidermidis species were 31.5% and 18.5%, respectively and the percentage of strains with MAR >0.2 was greater in S. epidermidis (32.6%) than S. non-epidermidis (23.9%). Although the percentage of strains resistant to tigecycline, glycopeptides, rifampicin and oxazolidinones was very small (2.3%, 1.9%, 1.4% and 0.7% respectively), single strains were reported in both groups. The study has shown a high proportion of MDR and methicillin-resistant CoNS strains, which indicates a large share of drug-resistant microorganisms in the process of persistence of chronic rhinosinusitis; therefore, isolation of this group of microorganisms from clinical cases using aseptic techniques should not be neglected.

Left Pansinusitis and Periorbital and Intracranial Abscesses Due to Actinomyces Species

1988 ◽  
Vol 2 (3) ◽  
pp. 117-120
Author(s):  
Donald R. Paugh ◽  
Charles F. Koopmann
Keyword(s):  
Case Report ◽  
Paranasal Sinus ◽  
Frontal Sinus ◽  
Coagulase Negative Staphylococcus ◽  
Intracranial Abscess ◽  
Paranasal Sinusitis ◽  
First Case ◽  
Actinomyces Species ◽  
Spread Of Infection ◽  
Staphylococcus Spp

Paranasal sinusitis may occasionally be complicated by intraorbital or intracranial spread of infection. In this presentation, the authors report the case of a 17-year-old male with left pansinusitis complicated by periorbital and intracranial abscess secondary to an infection associated with Actinomyces spp. and coagulase-negative Staphylococcus spp. This appears to be the first case report of Actinomyces involvement in the orbit or frontal sinus. The potential morbidity and/or mortality associated with locally invasive paranasal sinus abscess is reviewed. The combined medical and surgical management of this problem is presented.

scholarly journals Toxin Production and Resistance of Staphylococcus Species Isolated from Fermented Artisanal Dairy Products in Benin

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Majoie Géroxie Tohoyessou ◽  
Wassiyath Mousse ◽  
Haziz Sina ◽  
Fernique Kona ◽  
Tania Azanghadji ◽  
...  
Keyword(s):  
Dairy Products ◽  
Food Poisoning ◽  
Toxin Production ◽  
Fermented Milk ◽  
Diffusion Method ◽  
Coagulase Negative Staphylococcus ◽  
Production And Distribution ◽  
Susceptibility Profiles ◽  
Staphylococcus Spp ◽  
Fermented Dairy

Staphylococcus species are considered as one of the major pathogens causing outbreaks of food poisoning. The aim of this work was to assess the toxinogenic and antibiotic susceptibility profiles of the strains of Staphylococcus spp isolated from three types of fermented dairy products (yoghourt, millet dêguê, and couscous dêguê). The isolation of the Staphylococcus strains was performed on selective media, and their identification was done using biochemical and molecular methods. The susceptibility at 15 antibiotics tested was assessed using the disc diffusion method. The immunodiffusion method was used to evaluate the toxin (luk-E/D, luk-S/F, ETA, and ETB) production. Biofilm formation was qualitatively researched on microplates. Less than half (42.77%) of the collected samples were contaminated with Staphylococcus spp. The yoghourt and millet dêguê samples collected in the afternoon were more contaminated than those collected in the morning. The S. aureus, S. capitis, and S. xylosus strains, respectively, were the most present. S. aureus was the only coagulase-positive species identified in our samples. The highest resistance to antibiotics was observed with penicillin (100%) irrespective of the nature of the sample. S. aureus strains were highly (71.4%) resistant to methicillin. The S. aureus strains were the most biofilm-forming (27.6%), followed by S. capitis strains. Panton and Valentine’s leukocidin (luk-S/F) was produced by only S. aureus strains at a rate of 8.33%. Only coagulase-negative Staphylococcus (CNS) produced Luk-E/D. The high rates of Staphylococci contamination indicate bad hygiene quality during the production and distribution of dairy products. It is, therefore, necessary to improve the quality of fermented milk products.

scholarly journals Bacteria in chicken rolls sold by fast food restaurant and their public health significance

2016 ◽  
Vol 32 (1) ◽  
pp. 13-18 ◽  
Author(s):  
S Sultana ◽  
MA Islam ◽  
MM Khatun
Keyword(s):  
Public Health ◽  
Fast Food ◽  
Microwave Treatment ◽  
Viable Count ◽  
Coagulase Negative Staphylococcus ◽  
Fast Food Restaurant ◽  
Sugar Fermentation ◽  
Health Significance ◽  
Staphylococcus Spp

This study determined bacterial quality of chicken rolls sold in a fast food restaurant at Bangladesh Agricultural University (BAU) campus. Fifteen chicken rolls (ten premicrowaved and five post-microwaved) were collected. Samples were inoculated into selective media, Eosin Methylene Blue (EMB) agar, Salmonella Shigella (SS) agar, Thiosulphate Citrate Bile Salts Sucrose (TCBS) agar and Mannitol Salt (MS) agar. The total viable count (TVC) and total Staphylococcal count (TSC) of pre-microwaved samples were 4.4 log CFU/g and 4.2 log CFU/g, respectively. In post-microwaved samples, the TVC and TSC were 2.7 log CFU/g and 2.6 log CFU/g, respectively. Microwave treatment significantly reduced the TVC and TSC in the chicken rolls (P<0.05). Bacteria were recovered only from samples inoculated onto MS agar. Colonies on MS agar were characteristics of Staphylococcus spp, confirmed by sugar fermentation, catalase and coagulase tests and polymerase chain reaction (PCR) assay. This study recorded coagulase negative staphylococcus (CNS) resistant to three antibiotics, ampicillin, cephalexin and vancomycin. It is suggested that chicken rolls sold in the fast food restaurant contaminated with resistant CNS might pose a public health hazard.Bangl. vet. 2015. Vol. 32, No. 1, 13-18

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