Article
Infectious Diseases
Junyan Qu, Chunlu Feng, Huan Li, Xiaoju Lv
Summary: Carbapenem-resistant Gram-negative bacterial bloodstream infection (CRGNB-BSI) is a growing global threat with limited treatment options and high mortality rates. This study examined the antibiotic strategies and clinical outcomes of 355 patients with CRGNB-BSI in Western China. The research found that appropriate therapy significantly reduced treatment failure and mortality rates, while factors such as multiple organ dysfunction syndrome (MODS) and ICU admission were associated with poorer clinical outcomes.
INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS
(2021)
Article
Biochemistry & Molecular Biology
Boris Veltman, Dorin Harpaz, Yael Cohen, Elena Poverenov, Evgeni Eltzov
Summary: Chitosan nanoparticles modified with N-alkylamines exhibit selective binding properties to Gram-negative bacteria, leading to bacterial aggregation. Shorter chain length substituents on the modified CNPs result in higher aggregation effects, particularly towards Escherichia coli and Salmonella. Additionally, CNPs with lower degree of substitution show greater inhibitory effects on the growth of Gram-negative strains.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Immunology
Andrew Bock, Blake M. Hanson, Felicia Ruffin, Joshua B. Parsons, Lawrence P. Park, Batu Sharma-Kuinkel, Michael Mohnasky, Cesar A. Arias, Vance G. Fowler, Joshua T. Thaden
Summary: Recurrent gram-negative bacterial bloodstream infections (GNB-BSI) are mainly caused by relapse, and pulsed-field gel electrophoresis accurately differentiates relapse from reinfection. Having a cardiac device is a risk factor for relapse.
CLINICAL INFECTIOUS DISEASES
(2023)
Article
Infectious Diseases
John F. McNamara, Patrick N. A. Harris, Mark D. Chatfield, David L. Paterson
Summary: This study aimed to understand the long-term mortality, risk of readmission, and cause of death following a gram-negative bloodstream infection (GN-BSI). The results showed that GN-BSI had higher rates of readmission and mortality, and sepsis was the main contributing cause of death.
INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES
(2022)
Article
Environmental Sciences
Nicolas Francisco Fernandez-Martinez, Sheila Carcel-Fernandez, Carmen De la Fuente-Martos, Rafael Ruiz-Montero, Bernardo R. Guzman-Herrador, Rafael Leon-Lopez, Francisco Javier Gomez, Julia Guzman-Puche, Luis Martinez-Martinez, Inmaculada Salcedo-Leal
Summary: This study aimed to identify risk factors for carriage of multidrug-resistant Gram-negative bacteria (MDR-GNB) upon admission to an intensive care unit (ICU). Through a case-control study, the researchers collected sociodemographic, clinical, and microbiological data and found that liver cirrhosis was the main comorbidity associated with MDR-GNB carriage.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Review
Infectious Diseases
Jessica Waters, Andrew F. F. Shorr
Summary: Newer antibiotics have been developed and proven effective in treating various types of multidrug-resistant infections, but there is limited information on their efficacy specifically for bloodstream infections.
Review
Chemistry, Medicinal
Qidi Kong, Yushe Yang
Summary: Antimicrobial resistance poses a global challenge as the effectiveness of old antibiotics diminishes. Discovery and development of antibacterial agents have been accelerated to replenish the limited and shrinking arsenal of antibiotics. Significant advances have been made in recent years in the antibacterial field, including new compounds of known classes and new compounds with new mechanisms.
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
(2021)
Article
Public, Environmental & Occupational Health
Yijie Liu, Ting Sun, Ying Cai, Tianshu Zhai, Linna Huang, Qi Zhang, Chunlei Wang, He Chen, Xu Huang, Min Li, Jingen Xia, Sichao Gu, Lingxi Guo, Bin Yang, Xiaojing Wu, Binghuai Lu, Qingyuan Zhan
Summary: This study aimed to investigate the clinical and prognostic characteristics of pneumonia-related bloodstream infections (PRBSI) in the intensive care unit (ICU). The study found that patients with PRBSI had higher mortality rates, longer duration of mechanical ventilation and ICU stay compared to non-PRBSI patients. PRBSI patients showed extensive consolidation lesions on chest radiographs and the most common causative organisms were carbapenem-resistant gram-negative bacteria.
FRONTIERS IN PUBLIC HEALTH
(2023)
Article
Infectious Diseases
Renato Pascale, Silvia Corcione, Linda Bussini, Livia Pancaldi, Daniele Roberto Giacobbe, Simone Ambretti, Tommaso Lupia, Cristina Costa, Anna Marchese, Francesco Giuseppe De Rosa, Matteo Bassetti, Claudio Viscoli, Michele Bartoletti, Maddalena Giannella, Pierluigi Viale
Summary: This study analyzed a cohort of patients with NFGN-BSI in northern Italy and found a high prevalence of DTR, particularly among Acinetobacter baumannii episodes. BSI due to Acinetobacter baumannii was identified as an independent predictor of mortality, highlighting the urgent need for new therapeutic options against this pathogen.
BMC INFECTIOUS DISEASES
(2021)
Article
Microbiology
Farooq Ahmed Wani, Altaf Bandy, Mohammed Jayed S. Alenzi, Abdulaziz Ibrahim Alzarea, Abdullah S. Alanazi, Mohammed Ubaidullah Sayeed, Ashokkumar Thirunavukkarasu, Bilal Tantry, Mushtaq Dar
Summary: Intensive care units are complex environments that favor high resistance in microorganisms, particularly Gram-negative bacteria. This study found that a majority of infections in intensive care patients are caused by multidrug-resistant Gram-negative bacteria, with high resistance rates observed for third- and fourth-generation cephalosporins, carbapenems, and fluoroquinolones. Amikacin was identified as the most effective antibiotic, highlighting the need for enhanced surveillance and antimicrobial stewardship programs.
Article
Microbiology
Giorgia Montrucchio, Andrea Costamagna, Tommaso Pierani, Alessandra Petitti, Gabriele Sales, Emanuele Pivetta, Silvia Corcione, Antonio Curtoni, Rossana Cavallo, Francesco Giuseppe De Rosa, Luca Brazzi
Summary: Considering the increasing prevalence of carbapenem-resistant Gram-negative bacteria bloodstream infection in ICUs, it is crucial to identify specific risk factors and develop a predictive model for early identification. This retrospective case-control study found several significant risk factors and proposed a prognostic model based on age, sepsis, previous cardiovascular surgery, SAPS II score, rectal colonization, and invasive respiratory infection.
Article
Microbiology
Daria V. Vasina, Nataliia P. Antonova, Igor Grigoriev, Victoria S. Yakimakha, Anastasiya M. Lendel, Maria A. Nikiforova, Andrei A. Pochtovyi, Timofey A. Remizov, Evgeny Usachev, Natalia Shevlyagina, Vladimir G. Zhukhovitsky, Mikhail Fursov, Vasiliy D. Potapov, Aleksei M. Vorobev, Andrey Aleshkin, Aleksei Laishevtsev, Valentine V. Makarov, Sergey M. Yudin, Artem P. Tkachuk, Vladimir A. Gushchin
Summary: Endolysin-based therapeutics show promise as antibacterial agents, especially against Gram-negative pathogens. This study comprehensively investigated four Gram-negative bacteria-targeting endolysins for their antimicrobial efficacy, activity, and biological safety, demonstrating broad spectrum effectiveness with minimal safety concerns.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Microbiology
Jingyuan Xi, Peiyao Jia, Ying Zhu, Wei Yu, Jingjia Zhang, Haotian Gao, Wei Kang, Ge Zhang, Jin Li, Tong Wang, Yingchun Xu, Qiwen Yang
Summary: The study in China revealed that the main pathogens of Gram-negative bacteria bloodstream infections were Enterobacteriaceae, with Escherichia coli being the most common pathogen. Klebsiella pneumonia, Pseudomonas aeruginosa, Acinetobacter baumannii, and Enterobacter cloacae showed high resistance rates to multiple antibiotics. Polymyxin B and colistin have become crucial agents in combating infections caused by multidrug-resistant Gram-negative bacteria.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Infectious Diseases
Qiqiang Liang, Qinyu Zhao, Xin Xu, Yu Zhou, Man Huang
Summary: In this study, a prediction model for carbapenem-resistant Gram-negative bacteria (CR-GNB) carriage was constructed, which can predict the incidence of CR-GNB within a week. The results showed that machine learning models performed well in terms of accuracy and the area under the receiver operating characteristic curve, and can help medical staff identify high-risk groups more accurately in real-time.
JOURNAL OF GLOBAL ANTIMICROBIAL RESISTANCE
(2022)
Article
Multidisciplinary Sciences
Mera A. Ababneh, Mohammad Al Domi, Abeer M. Rababa'h
Summary: This study investigated the types of antimicrobial agents used in the ICU and factors associated with mortality in bloodstream infections (BSIs) patients. The study found that a combination of three or more antimicrobial agents was commonly used, and the mortality rate was high among BSI patients. Factors such as age, comorbidities, hospital infections, and length of ICU stay were associated with mortality. The study suggests the evaluation of antimicrobial stewardship protocols in the ICU and implementation of infection control measures and comorbidity management to reduce mortality rates.
Article
Public, Environmental & Occupational Health
David K. Warren, Katelin B. Nickel, Christopher J. Hostler, Katherine Foy, Jennifer H. Han, Pam Tolomeo, Ian R. Banks, Victoria J. Fraser, Margaret A. Olsen
Summary: The study found that there was significant variation in the use of post-discharge prophylactic antibiotics among general surgeons, while plastic surgeons almost universally utilized them.
INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY
(2021)
Letter
Public, Environmental & Occupational Health
Bernard Surial, Miriam Vazquez, Walter Steiger, Eveline Rolli, Simon Brand, Konrad Muhlethaler, Jonas Marschall
INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY
(2022)
Article
Public, Environmental & Occupational Health
David K. Warren, Kate M. Peacock, Katelin B. Nickel, Victoria J. Fraser, Margaret A. Olsen
Summary: Prophylactic antibiotics are commonly prescribed at discharge for mastectomy, with anti-MSSA antibiotics associated with decreased risk of surgical-site infection (SSI) for both mastectomy-only and mastectomy with immediate reconstruction patients. High numbers needed to treat indicate potential benefits of postdischarge antibiotics should be weighed against potential harms of antibiotic overuse.
INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY
(2022)
Article
Public, Environmental & Occupational Health
Michele Birrer, Martin Perrig, Fabienne Hobi, Christina Gfeller, Andrew Atkinson, Martin Egger, Corinne Bartholdi, Drahomir Aujesky, Jonas Marschall, Rami Sommerstein
Summary: Droplet precautions on-site (DroPS) may be a simple and potentially resource-saving alternative to the standard single room isolation strategy for respiratory viral infections.
ANTIMICROBIAL RESISTANCE AND INFECTION CONTROL
(2022)
Article
Public, Environmental & Occupational Health
Niccolo Buetti, Jonas Marschall, Marci Drees, Mohamad G. Fakih, Lynn Hadaway, Lisa L. Maragakis, Elizabeth Monsees, Shannon Novosad, Naomi P. O'Grady, Mark E. Rupp, Joshua Wolf, Deborah Yokoe, Leonard A. Mermel
INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY
(2022)
Article
Microbiology
Miguel A. Chavez, Satish Munigala, Carey-Ann D. Burnham, Melanie L. Yarbrough, David K. Warren
Summary: Persistent Staphylococcus aureus bacteremia (SAB) has been associated with increased mortality. Enhanced microbial detection with new blood culture technology may improve detection of S. aureus in patients with SAB. However, implementation of a new blood culture system may lead to an increased duration of SAB without affecting adverse outcomes.
JOURNAL OF CLINICAL MICROBIOLOGY
(2022)
Review
Immunology
Philipp Jent, Julia Berger, Annette Kuhn, Barbara W. Trautner, Andrew Atkinson, Jonas Marschall
Summary: Recurrent urinary tract infections are common, and antibiotic prophylaxis significantly reduces the risk of developing UTIs. Different antibiotics appear to have similar efficacy, and intermittent application is equally effective as continuous application.
OPEN FORUM INFECTIOUS DISEASES
(2022)
Article
Public, Environmental & Occupational Health
Andrew Atkinson, Benjamin Ellenberger, Vanja Piezzi, Tanja Kaspar, Luisa Salazar-Vizcaya, Olga Endrich, Alexander B. Leichtle, Jonas Marschall
Summary: This study investigated a nosocomial outbreak of vancomycin-resistant enterococci (VRE) by applying machine-learning and graph-theoretical methods. The findings identified risk factors for VRE colonization and revealed three main pathways for VRE transmission: healthcare personnel, medical devices, and patient rooms.
INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY
(2023)
Article
Public, Environmental & Occupational Health
Ornnicha Sathitakorn, Siriththin Chansirikarnjana, Kittiya Jantarathaneewat, David J. Weber, David K. Warren, Piyaporn Apisarnthanarak, Pichaya Tantiyavarong, Anucha Apisarnthanarak
Summary: This quasi-experimental study found that implementing procalcitonin and Clinical Pulmonary Infection Score (CPIS) effectively reduced inappropriate antibiotic use among severely-to-critically ill COVID-19 patients, but did not improve the situation among mildly-to-moderately ill patients.
INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY
(2023)
Article
Public, Environmental & Occupational Health
Armaghan-e-Rehman A. Mansoor, Caroline O'Neil, David J. McDonald, Victoria M. Fraser, Hilary H. Babcock, Jennie Kwon
Summary: The survey aimed to understand the experiences, beliefs, and perceptions of healthcare personnel (HCP) at nonacute care facilities regarding COVID-19 risk, infection prevention practices, and COVID-19 vaccination. The results showed that many HCP reported increased stress and feelings of burnout at work, while the majority had received the COVID-19 vaccine. Improving workplace policies, providing mental health resources and sick leave, ensuring access to personal protective equipment (PPE), and clear communication of PPE requirements may alleviate work stress and burnout.
INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY
(2023)
Article
Medicine, General & Internal
Yvonne Pfeiffer, Andrew Atkinson, Judith Maag, Michael A. Lane, David Schwappach, Jonas Marschall
Summary: This study aimed to investigate the relationship between surgical site infections (SSIs) and safety and teamwork climate. The findings suggest a possible negative correlation between climate level and SSI rate, while no associations were found for climate strength.
Article
Public, Environmental & Occupational Health
Miguel A. Chavez, Satish Munigala, Carey-Ann D. Burnham, Melanie L. Yarbrough, Crystal Squires, Josephine Fox, Heather Gasama, Kevin Hsueh, David K. Warren
Summary: This study implemented two interventions, kits for sample collection improvement and an electronic order alert for appropriate indications of fungal blood cultures, to enhance utilization and contamination control at the institution. The results showed that the electronic order alert was associated with decreased utilization of fungal blood cultures without a decrease in positivity rate.
INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY
(2023)
Article
Environmental Sciences
Alaa M. M. Mansour, Mohamed A. A. Nossair, Faten S. S. Soliman, Rasha Gomaa Tawfik, Engy Elekhnawy, Hayder M. M. Al-Kuraishy, Gaber El-Saber Batiha, Mohamed H. H. Mahmoud, Athanasios Alexiou, Michael M. M. Shawky
Summary: This study collected 300 samples from five municipal abattoirs in several Egyptian provinces, including meat, water, air, floor, wall, and hand swabs. Escherichia coli was isolated from these samples, with various serotypes identified. The isolates showed resistance to cefotaxime, amoxiclav, and rifampin, and multiple virulence genes were detected. Nanosilver was effective in preventing bacterial growth at a concentration of 12.5 ppm. Poor hygiene practices among employees were also observed.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH
(2023)
Article
Infectious Diseases
Phahol Sarojvisut, Anucha Apisarnthanarak, Kittiya Jantarathaneewat, Ornnicha Sathitakorn, Thanus Pienthong, Chatchai Mingmalairak, David K. Warren, David J. Weber
Summary: This study found no improvement in the WHO-category ordinal scale, reduced illness duration, or development of severe COVID-19 in moderately ill COVID-19 patients with the combination of ivermectin and standard of care.
INFECTION AND CHEMOTHERAPY
(2023)