is a facultative anaerobic gram-negative rod bacterium, which can acquire pathogenicity through the acquisition of additional genetic material. We present a case of ST1193, an emerging global multidrug-resistant (MDR) high-risk clone, causing native valve endocarditis and septic brain and splenic emboli in a 67-year-old woman.
View Article and Find Full Text PDFSpontaneous community-acquired meningitis caused by E. coli is rare in the adult population. It is associated with a high risk of morbidity and mortality.
View Article and Find Full Text PDFCase: A 79-year-old active male presented during the first COVID-19 pandemic surgery moratorium with late Staphylococcus lugdunensis periprosthetic total hip arthroplasty infection. Due to the unprecedented circumstances, novel treatment of IV and oral antibiotic suppression was trialed without preceding surgical intervention. At latest follow-up, the patient has two-year revision-free survival with normalization of inflammatory markers and MRI findings, and resolution of clinical symptoms.
View Article and Find Full Text PDFTwo cases of Brucellosis were identified at a hospital in Rhode Island. In both cases, the organisms were isolated from the blood cultures. The bacteria did not appear as the classical textbook description of Brucella spp.
View Article and Find Full Text PDFSerology testing of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is increasingly being used during the current pandemic of coronavirus disease 2019 (COVID-19), although its clinical and epidemiologic utilities are still debatable. Characterizing these assays provides scientific basis to best use them. The current study assessed one chemiluminescent assay (Abbott COVID-2 IgG) and two lateral flow assays (STANDARD Q [SQ] IgM/IgG Duo and Wondfo total antibody test) using 113 blood samples from 71 PCR-confirmed COVID-19 hospitalized patients, 119 samples with potential cross-reactions, and 1068 negative controls including 942 pre-pandemic samples.
View Article and Find Full Text PDFSARS-CoV-2 is a novel virus that has now affected hundreds of thousands of individuals across the world. Amidst this global pandemic, maintaining a high index of suspicion, rapid testing capacity, and infection control measures are required to curtail the virus' rapid spread. While fever and respiratory symptoms have been commonly used to identify COVID-19 suspects, we present an elderly female who arrived to the hospital after a syncopal episode.
View Article and Find Full Text PDFThe novel coronavirus (now called SARS-CoV-2) initially discovered in Wuhan, China, has now become a global pandemic. We describe a patient presenting to an Emergency Department in Rhode Island on March 12, 2020 with cough and shortness of breath after a trip to Jamaica. The patient underwent nasopharyngeal swab for a respiratory pathogen panel as well as SARS-CoV-2 RT-PCR.
View Article and Find Full Text PDFThe rate of nosocomial C. difficile in Rhode Island is among the highest in the country. Colonization with C.
View Article and Find Full Text PDFR I Med J (2013)
March 2020
C. difficile is a complication of antibiotic therapy. Certain antibiotics are associated with a higher rate of developing C.
View Article and Find Full Text PDFThe rate of nosocomial C. difficile in the state of Rhode Island is among the highest in the country. Multiple factors impact the occurrence of nosocomial C.
View Article and Find Full Text PDFHospital antibiograms, because they are typically derived from samples obtained from hospitalized patients, may overestimate the prevalence of methicillin resistance in S. aureus in individuals presenting to the hospital for surgery. Because hospital antibiograms are commonly used to justify empiric perioperative prophylactic antibiotic selection prior to surgery, this may lead to unnecessary treatment with broad-spectrum antibiotics such as vancomycin.
View Article and Find Full Text PDFInfection Control measures can reduce the transmission of bacteria in the hospital. Reduction in the use of antibiotics via Antimicrobial Stewardship programs can reduce antibiotic resistance. The combination of Infection Control measures and Antimicrobial Stewardship can lead to a greater reduction in antibiotic resistant bacteria.
View Article and Find Full Text PDFDespite the dramatic decrease in invasive pneumococcal disease since the widespread use of the first pneumococcal vaccine, invasive and resistant disease still occurs. We present a case of ceftriaxone-resistant pneumococcal meningitis suggesting that continued vigilance is warranted for empiric treatment of meningitis when is a concern.
View Article and Find Full Text PDFstrains resistant to penicillin and ampicillin are rare and have been associated with increases in quantities of low-affinity penicillin-binding protein 4 (PBP4) or with amino acid substitutions in PBP4. We report an strain (LS4828) isolated from a prosthetic knee joint that was subjected to long-term exposure to aminopenicillins. Subsequent cultures yielded with MICs of penicillins and carbapenems higher than those for wild-type strain JH2-2.
View Article and Find Full Text PDFIn the United States, sexually transmitted diseases due to Chlamydia trachomatis and Neisseria gonorrhoeae continue to be a major public health burden. Screening of extragenital sites including the oropharynx and rectum is an emerging practice based on recent studies highlighting the prevalence of infection at these sites. We reviewed studies reporting the prevalence of extragenital infections in women, men who have sex with men (MSM), and men who have sex only with women (MSW), including distribution by anatomical site.
View Article and Find Full Text PDFUse of cardiovascular implantable electronic devices (CIED), including permanent pacemakers (PPM) and implantable cardioverter defibrillators (ICD), has increased dramatically over the past two decades. Most CIED infections are caused by staphylococci. Fungal causes are rare and their prognosis is poor.
View Article and Find Full Text PDFCommunity-acquired respiratory tract infections (RTIs) account for a substantial proportion of outpatient antimicrobial drug prescriptions worldwide. Concern over the emergence of multidrug resistance in pneumococci has largely been focused on penicillin-resistant Streptococcus pneumoniae. Macrolide antimicrobial drugs have been widely used to empirically treat community-acquired RTIs because of their efficacy in treating both common and atypical respiratory pathogens, including S.
View Article and Find Full Text PDFTelithromycin, a recently approved ketolide antibiotic derived from 14-membered macrolides, is active against erythromycin-resistant pneumococci. Telithromycin has enhanced activity in vitro because it binds not only to domain V of ribosomal RNA (like macrolides do) but also to domain II. However, it is not active against streptococci and staphylococci with constitutive macrolide, lincosamide, and streptogramin B resistance.
View Article and Find Full Text PDFEmpiric antimicrobial prescribing for community-acquired pneumonia remains a challenge, despite the availability of treatment guidelines. A number of key differences exist between North American and European guidelines, mainly in the outpatient setting. The North American approach is to use initial antimicrobial therapy, which provides coverage for Streptococcus pneumoniae plus atypical pathogens.
View Article and Find Full Text PDFRespiratory tract infections are treated empirically. Treatment is based on the likely pathogens and their antibiotic susceptibility. The most common respiratory tract pathogen is Streptococcus pneumoniae.
View Article and Find Full Text PDFMacrolide resistance among Streptococcus pneumoniae is a growing global concern, although its specific impact on public health is not currently well defined. A Consensus Working Group was convened in March 2001 to address whether credible, scientific data substantiate macrolide resistance in S. pneumoniae as: (i) producing significant morbidity; (ii) creating attendant health and economic burdens; (iii) constituting a public health threat; and (iv) warranting intervention, including development of new antibiotics with efficacy against these strains.
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