Staphylococcus aureus
Experimental TherapeuticsIn Vitro Study of the Synergistic Effect of an Enzyme Cocktail and Antibiotics against Biofilms in a Prosthetic Joint Infection ModelProsthetic joint infections (PJI) are frequent complications of arthroplasties. Their treatment is made complex by the rapid formation of bacterial biofilms, limiting the effectiveness of antibiotic therapy.
Mechanisms of ResistanceInteraction of Staphylococcus aureus and Acinetobacter baumannii during In Vitro β-Lactam ExposureWe sought to determine if Acinetobacter baumannii is capable of altering the pharmacodynamics of an antistaphylococcal β-lactam. Two strains of methicillin-susceptible Staphylococcus aureus (MSSA) and two A. baumannii isolates...
Editor's Pick Epidemiology and SurveillanceAnalysis of Multidrug Resistance in Staphylococcus aureus with a Machine Learning-Generated AntibiogramMultidrug resistance (MDR) surveillance consists of reporting MDR prevalence and MDR phenotypes. Detailed knowledge of the specific associations underlying MDR patterns can allow antimicrobial stewardship programs to accurately identify clinically relevant resistance patterns.
Experimental TherapeuticsDeimmunized Lysostaphin Synergizes with Small-Molecule Chemotherapies and Resensitizes Methicillin-Resistant Staphylococcus aureus to β-Lactam AntibioticsThere is an urgent need for novel agents to treat drug-resistant bacterial infections, such as multidrug-resistant Staphylococcus aureus (MRSA). Desirable properties for new antibiotics include high potency, narrow species selectivity, low propensity to elicit new resistance phenotypes, and synergy with standard-of-care (SOC) chemotherapies.
Mechanisms of ResistanceDe Novo Resistance to Arg10-Teixobactin Occurs Slowly and Is CostlyBacterial pathogens are rapidly evolving resistance to all clinically available antibiotics. One part of the solution to this complex issue is to better understand the resistance mechanisms to new and existing antibiotics. Here, we focus on two antibiotics. Teixobactin is a recently discovered promising antibiotic that is claimed to “kill pathogens without detectable resistance” (L. L. Ling, T. Schneider, A. J. Peoples, A. L. Spoering,...
Clinical TherapeuticsA Population Pharmacokinetic Analysis of Continuous Infusion of Cloxacillin during Staphylococcus aureus Bone and Joint InfectionsIntravenous administration of antibiotics is recommended during the early phase of methicillin-susceptible S. aureus (MSSA) bone and joint infection (BJI). We sought to compare the plasma concentrations of cloxacillin administered alternately by continuous and intermittent infusion (CI and ItI) in patients with MSSA BJI. In this prospective crossover trial, patients...
Epidemiology and SurveillanceIn Vitro Activity and Potency of the Novel Oxazolidinone Contezolid (MRX-I) Tested against Gram-Positive Clinical Isolates from the United States and EuropeContezolid, a new oxazolidinone antibacterial agent currently in development for the treatment of skin and skin structure infections, was susceptibility tested against Gram-positive clinical isolates (n = 1,211). Contezolid demonstrated potent activity against Staphylococcus aureus (MIC50/90, 0.5/1 mg/liter), coagulase-negative Staphylococcus...
SusceptibilityComparative In Vitro Activities of Ceftaroline and Tedizolid against Clinical Strains of Staphylococcus aureus and Enterococcus: Results from the China Antimicrobial Surveillance Network (CHINET) in 2018The in vitro activities of ceftaroline and tedizolid were compared against Staphylococcus aureus, Enterococcus faecalis, and Enterococcus faecium clinical isolates collected from the China Antimicrobial Surveillance...
MinireviewPovidone Iodine: Properties, Mechanisms of Action, and Role in Infection Control and Staphylococcus aureus DecolonizationNasal decolonization is an integral part of the strategies used to control and prevent the spread of methicillin-resistant Staphylococcus aureus (MRSA) infections. The two most commonly used agents for decolonization are intranasal mupirocin 2% ointment and chlorhexidine wash, but the increasing emergence of resistance and treatment failure has underscored the need...
MinireviewFocusing the Lens on the CAMERA Concepts: Early Combination β-Lactam and Vancomycin Therapy in Methicillin-Resistant Staphylococcus aureus BacteremiaMethicillin-resistant Staphylococcus aureus (MRSA) has grown to become a major burden on health care systems. The cumulation of limited therapeutic options and worsened patient outcomes with persistent MRSA bacteremia has driven research in optimizing its initial management. The guidelines published by the Infectious Diseases Society of America currently recommend...