Clinical, phenotypic, and genotypic characteristics of ESBL-producing bloodstream infections from Qatar.

Background: Resistant infections are a major global public health challenge particularly for multidrug-resistant (MDR) isolates manifesting as bloodstream infections (BSIs).

Objectives: To evaluate clinical, phenotypic, and genotypic characteristics of extended-spectrum beta-lactamase (ESBL) producing BSIs from Qatar.

Methods: Phenotypic ESBL from adult patients presenting with positive BSIs were collected between January 2019 to May 2020.

Epidemiology, microbiological, clinical characteristics, and outcome of complex infections in non-cystic fibrosis adult patients from Qatar.

Objectives: species infections are associated with diverse and challenging clinical presentations because of distinct virulence and antimicrobial resistance factors. The study aims to evaluate the epidemiology, microbiological, and clinical outcomes of complex (Bcc) infections in non-cystic fibrosis (CF) patients from Qatar.

Methods: A retrospective study was conducted on adult patients across all hospitals at Hamad Medical Corporation between January 2012 and December 2018 to evaluate clinically relevant Bcc in non-CF adult patients.

Prevalence and genetic characterization of clinically relevant extended-spectrum β-lactamase-producing in the Gulf Cooperation Council countries.

Introduction: Among Gram-negative bacteria (GNB), (), such as () and (), are the most clinically relevant pathogens in healthcare settings. Infections secondary to these pathogens are widely common but multidrug resistance (MDR) in has become a significant challenge with increased morbidity, mortality, and cost of management. The escalating global prevalence of MDR in has led to limited treatment options, raising an urgent need for novel antimicrobial therapy(s) and detailed studies exploring underlying resistance mechanisms.

Evaluation of anakinra in the management of patients with COVID-19 infection: A randomized clinical trial.

Background: The global COVID-19 pandemic led to substantial clinical and economic outcomes with catastrophic consequences. While the majority of cases has mild to moderate disease, minority of patients progress into severe disease secondary to the stimulation of the immune response. The hyperinflammatory state contributes towards progression into multi-organ failure which necessitates suppressive therapy with variable outcomes.

A complex presentation of an uncommon disease: Gas-forming pyogenic liver abscess complicated by septic pulmonary emboli and muscle abscesses, a case report and review of the literature.

Background: Pyogenic liver abscess (PLA) is the most common type of visceral abscess. Its variable clinical presentation depends on patient demography, underlying conditions, causative pathogens as well as the size of the abscess. Most cases are secondary to enteric pathogens that cause focal liver disease.

Microbiological and clinical characteristics of invasive Group B Streptococcal blood stream infections in children and adults from Qatar.

Introduction: Group B Streptococci (GBS) colonize almost one third of human gastrointestinal and genitourinary tracts, particularly in females. The aim of this study is to evaluate the epidemiology, microbiological characteristics, and clinical outcomes of invasive GBS disease in Qatar from all age groups.

Methods: A retrospective study was conducted on patients with confirmed GBS blood stream infections during the period between January 2015 and March 2019.

Epidemiology, microbiological and clinical characteristics of Enterococcus species bloodstream infections: A 10-year retrospective cohort study from Qatar.

Background And Objective: Enterococcus species is one of the leading causes of community and healthcare-associated infections resulting in significant morbidity and mortality. In this study, we aim to evaluate the epidemiology, microbiological and clinical characteristics of Enterococcus Blood Stream Infections (BSIs) over 10 years period in a national secondary care setting.

Methods: A retrospective cohort study was conducted on verified cases of BSIs in adults from January 2009-December 2018 from specialized care hospitals at Hamad Medical Corporation, Qatar.

Association of , , and β-Lactamase Genes with Resistance to Ceftazidime-Avibactam and Ceftolozane-Tazobactam in Multidrug-Resistant .

Ceftazidime-avibactam and ceftolozane-tazobactam are approved for the treatment of complicated Gram-negative bacterial infections including multidrug-resistant (MDR) . Resistance to both agents has been reported, but the underlying mechanisms have not been fully explored. This study aimed to correlate β-lactamases with phenotypic resistance to ceftazidime-avibactam and/or ceftolozane-tazobactam in MDR- from Qatar.

Clinical outcomes, molecular epidemiology and resistance mechanisms of multidrug-resistant isolated from bloodstream infections from Qatar.

Background: Bloodstream infections (BSIs) caused by multidrug-resistant (MDR)- are associated with poor clinical outcomes, at least partly due to delayed appropriate antimicrobial therapy. The characteristics of MDR- bloodstream isolates have not been evaluated in Qatar. Our study aimed to examine susceptibility, clinical and molecular characteristics, and mechanisms of resistance of MDR- bloodstream isolates from Qatar.

Antibiotics Prescribing in Intensive Care Settings during the COVID-19 Era: A Systematic Review.

The prevalence of patients admitted to intensive care units (ICUs) with SARS-CoV-2 infection who were prescribed antibiotics is undetermined and might contribute to the increased global antibiotic resistance. This systematic review evaluates the prevalence of antibiotic prescribing in patients admitted to ICUs with SARS-CoV-2 infection using PRISMA guidelines. We searched and scrutinized results from PubMed and ScienceDirect databases for published literature restricted to the English language up to 11 May 2021.

Challenges in the diagnosis of pulmonary mucormycosis in a diabetic with a review of literature.

Diabetes Mellitus appears to be the most common underlying condition associated with mucormycosis; a rare opportunistic fungal infection associated with high morbidity and mortality. Pulmonary mucormycosis may mimic pneumonia and thus pose challenges in achieving a timely diagnosis critical to successful outcomes. We present a case of a 65-year-old diabetic who presented with fever and haemoptysis that was managed as pneumonia.

Isolated pulmonary cryptococcosis in a patient with Crohn's disease treated with infliximab: A case report and literature review.

Tumor necrosis factor-alpha (TNF-α) inhibitors are widely used to treat various inflammatory conditions, where they have demonstrated excellent efficacy and tolerability. However, increased risk of infections is one of the most important concerns associated with these agents. Reactivation of tuberculosis and fungal infections have emerged as significant infective complications of anti-TNF-α therapy.

Epidemiology of Multidrug-Resistant Pseudomonas aeruginosa in the Middle East and North Africa Region.

Over the last decades, there has been a dramatic global increase in multidrug-resistant (MDR) pathogens particularly among Gram-negative bacteria (GNB). is responsible for various health care-associated infections, while MDR causes significant morbidity and mortality. Middle East and North Africa (MENA) represent an unexplored geographical region for the study of drug resistance since many of these countries are at crossroads of high volume of travel, diverse expatriate populations, as well as high antibiotic consumption despite attempts to implement antimicrobial stewardship programs.

A Comprehensive Review of Viral Characteristics, Transmission, Pathophysiology, Immune Response, and Management of SARS-CoV-2 and COVID-19 as a Basis for Controlling the Pandemic.

COVID-19 emerged from China in December 2019 and during 2020 spread to every continent including Antarctica. The coronavirus, SARS-CoV-2, has been identified as the causative pathogen, and its spread has stretched the capacities of healthcare systems and negatively affected the global economy. This review provides an update on the virus, including the genome, the risks associated with the emergence of variants, mode of transmission, immune response, COVID-19 in children and the elderly, and advances made to contain, prevent and manage the disease.

Recurrent nasopharyngeal rhinosporidiosis: Case report from Qatar and review of the literature.

Rhinosporidiosis is a chronic granulomatous infectious disease that predominantly affects the mucosal membranes of the nose and nasopharynx. The disease is caused by Rhinosporidium seeberi, an eukaryotic pathogen with distinct geographical distribution particularly in tropical and subtropical areas acquired mainly through aquatic exposure. We report a case of a young Nepalese male who presented with recurrent right nasopharyngeal mass where surgical excision and histopathological examination confirmed the diagnosis following distinct pathognomonic findings.

A case of mycetoma-like chromoblastomycosis in Qatar.

Chromoblastomycosis is one of the neglected tropical mycoses associated with chronic infection of the skin and subcutaneous tissues. We report a case of 49-year-old patient originally from India presented with a mycetoma-like lesion in his right foot which was slowly progressing over three-year period. The diagnosis of chromoblastomycosis was confirmed following surgical excision and identification of the unique histological pathology of muriform bodies.