keyword
MENU ▼
Read by QxMD icon Read
search

Microbiology, bacteria, virus

keyword
https://www.readbyqxmd.com/read/29153181/a-100-year-review-microbiology-and-safety-of-milk-handling
#1
Kathryn J Boor, Martin Wiedmann, Sarah Murphy, Sam Alcaine
Microbes that may be present in milk can include pathogens, spoilage organisms, organisms that may be conditionally beneficial (e.g., lactic acid bacteria), and those that have not been linked to either beneficial or detrimental effects on product quality or human health. Although milk can contain a full range of organisms classified as microbes (i.e., bacteria, viruses, fungi, and protozoans), with few exceptions (e.g., phages that affect fermentations, fungal spoilage organisms, and, to a lesser extent, the protozoan pathogens Cryptosporidium and Giardia) dairy microbiology to date has focused predominantly on bacteria...
December 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29150768/toe-web-intertrigo-in-kaposi-s-sarcoma-patients-a-microbiological-study-in-a-large-cohort-of-patients
#2
G Nazzaro, A Tourlaki, B Scoppio, A Restelli, A Grancini, L Brambilla
Kaposi 's sarcoma (KS) is a rare multifocal angioproliferative disease associated with human herpes virus 8 (HHV-8) infection, characterized by cutaneous nodules or plaques especially on the lower limbs. Some skin modifications, such as chronic lymphedema, plantar hyperkeratosis and interdigital desquamation, may be associated with consequent impairment of the local immunosurveillance and increased risk of some bacterial or mycotic infections. With the objective of evaluating if bacterial or mycotic infections in KS patients are supported by different microorganisms compared to control patients, we performed an observational retrospective study, comparing positive cultural swabs of interdigital intertrigo of KS patients with positive cultural swabs of interdigital intertrigo of patients admitted to our dermatologic unit during the last 10 years...
November 17, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29132426/comment-on-a-re-assessment-of-the-safety-of-silver-in-household-water-treatment-rapid-systematic-review-of-mammalian-in-vivo-genotoxicity-studies
#3
EDITORIAL
Daniele Lantagne, Justine Rayner, Anjuliee Mittelman, Kurt Pennell
We wish to thank Fewtrell, Majuru, and Hunter for their article highlighting genotoxic risks associated with the use of particulate silver for primary drinking water treatment. The recent promotion of colloidal silver products for household water treatment in developing countries is problematic due to previously identified concerns regarding manufacturing quality and questionable advertising practices, as well as the low efficiency of silver nanoparticles to treat bacteria, viruses, and protozoa in source waters...
November 13, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/29090481/utility-of-flexible-bronchoscopy-with-polymerase-chain-reaction-in-the-diagnosis-and-management-of-pulmonary-infiltrates-in-allogeneic-hsct-patients
#4
Fei-Fei Tang, Xiao-Su Zhao, Lan-Ping Xu, Xiao-Hui Zhang, Yu-Hong Chen, Xiao-Dong Mo, Kai-Yan Liu, Xiao-Jun Huang
OBJECTIVES: Pulmonary infiltrates in allogeneic hematopoietic stem cell transplant (allo-HSCT) patients are potentially life-threatening and require early diagnosis and treatment. We aimed to retrospectively explore the clinical efficacy of polymerase chain reaction (PCR) in conjunction with flexible bronchoscopy (FB) in allo-HSCT patients with pulmonary infiltrates. PATIENTS AND METHODS: We retrospectively reviewed all patients undergoing FB after allo-HSCT at the Peking University Institute of Hematology from January 2013 to December 2016...
November 1, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/29074195/presence-of-enteric-viruses-bioaccumulation-and-stability-in-anomalocardia-brasiliana-clams-gmelin-1791
#5
Doris Sobral Marques Souza, Ana Ferreira Ávila Dominot, Vanessa Moresco, Célia Regina Monte Barardi
Bivalve mollusks are filter feeders and may accumulate human pathogens in their tissues. Many studies demonstrated human diseases associated with bivalve consumption, especially oysters. Anomalocardia brasiliana clams are distributed along the Brazilian coastal area and are an exotic ingredient for some typical dishes in Brazil. Even though there are several reports describing the contamination of oysters and mussels with human pathogens, there is a lack of studies reporting contamination of A. brasiliana with human pathogens...
August 12, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29051394/evolution-on-rugged-adaptive-landscapes
#6
Uri Obolski, Yoav Ram, Lilach Hadany
Adaptive landscapes represent a mapping between genotype and fitness. Rugged adaptive landscapes contain two or more adaptive peaks: allele combinations with higher fitness than any of their neighbors on the genetic space. How would a population evolve on such rugged landscapes? Evolutionary biologists have struggled with this question since it was first introduced in the 1930's by Sewall Wright. Discoveries in the fields of genetics and biochemistry inspired various mathematical models of adaptive landscapes...
October 20, 2017: Reports on Progress in Physics
https://www.readbyqxmd.com/read/29045616/potential-impact-of-global-climate-change-on-benthic-deep-sea-microbes
#7
Roberto Danovaro, Cinzia Corinaldesi, Antonio Dell Anno, Eugenio Rastelli
Benthic deep-sea environments are the largest ecosystem on Earth, covering approximately 65% of the Earth surface. Microbes inhabiting this huge biome at all water depths represent the most abundant biological components and a relevant portion of the biomass of the biosphere, and play a crucial role in global biogeochemical cycles. Increasing evidence suggests that global climate changes are affecting also deep-sea ecosystems, both directly (causing shifts in bottom-water temperature, oxygen concentration and pH), and indirectly (through changes in surface oceans' productivity and in the consequent export of organic matter to the seafloor)...
October 13, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29040428/understanding-the-promises-and-hurdles-of-metagenomic-next-generation-sequencing-as-a-diagnostic-tool-for-infectious-diseases
#8
Patricia J Simner, Steven Miller, Karen C Carroll
Agnostic metagenomic next-generation sequencing (mNGS) has emerged as a promising single, universal pathogen detection method for infectious diseases diagnostics. This methodology allows for identification and genomic characterization of bacteria, fungi, parasites and viruses without the need for a priori knowledge of a specific pathogen directly from clinical specimens. Although there are increasing reports of mNGS successes, several hurdles need to be addressed, such as differentiation of colonization from infection, extraneous sources of nucleic acid, method standardization, and data storage, protection, analysis, and interpretation...
October 12, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29022247/persistent-norovirus-contamination-of-groundwater-supplies-in-two-waterborne-outbreaks
#9
Ari Kauppinen, Tarja Pitkänen, Ilkka T Miettinen
Microbiological contamination of groundwater supplies causes waterborne outbreaks worldwide. In this study, two waterborne outbreaks related to microbiological contamination of groundwater supplies are described. Analyses of pathogenic human enteric viruses (noroviruses and adenoviruses), fecal bacteria (Campylobacter spp. and Salmonella spp.), and indicator microbes (E. coli, coliform bacteria, intestinal enterococci, Clostridium perfringens, heterotrophic plate count, somatic and F-specific coliphages) were conducted in order to reveal the cause of the outbreaks and to examine the effectiveness of the implemented management measures...
October 11, 2017: Food and Environmental Virology
https://www.readbyqxmd.com/read/28904380/transfer-of-labile-organic-matter-and-microbes-from-the-ocean-surface-to-the-marine-aerosol-an-experimental-approach
#10
Eugenio Rastelli, Cinzia Corinaldesi, Antonio Dell'Anno, Marco Lo Martire, Silvestro Greco, Maria Cristina Facchini, Matteo Rinaldi, Colin O'Dowd, Darius Ceburnis, Roberto Danovaro
Surface ocean bubble-bursting generates aerosols composed of microscopic salt-water droplets, enriched in marine organic matter. The organic fraction profoundly influences aerosols' properties, by scattering solar radiations and nucleating water particles. Still little is known on the biochemical and microbiological composition of these organic particles. In the present study, we experimentally simulated the bursting of bubbles at the seawater surface of the North-Eastern Atlantic Ocean, analysing the organic materials and the diversity of the bacteria in the source-seawaters and in the produced aerosols...
September 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28898207/shotgun-metagenomics-from-sampling-to-analysis
#11
REVIEW
Christopher Quince, Alan W Walker, Jared T Simpson, Nicholas J Loman, Nicola Segata
Diverse microbial communities of bacteria, archaea, viruses and single-celled eukaryotes have crucial roles in the environment and in human health. However, microbes are frequently difficult to culture in the laboratory, which can confound cataloging of members and understanding of how communities function. High-throughput sequencing technologies and a suite of computational pipelines have been combined into shotgun metagenomics methods that have transformed microbiology. Still, computational approaches to overcome the challenges that affect both assembly-based and mapping-based metagenomic profiling, particularly of high-complexity samples or environments containing organisms with limited similarity to sequenced genomes, are needed...
September 12, 2017: Nature Biotechnology
https://www.readbyqxmd.com/read/28862989/fetal-death-an-extreme-manifestation-of-maternal-anti-fetal-rejection
#12
Kia Lannaman, Roberto Romero, Tinnakorn Chaiworapongsa, Yeon Mee Kim, Steven J Korzeniewski, Eli Maymon, Nardhy Gomez-Lopez, Bogdan Panaitescu, Sonia S Hassan, Lami Yeo, Bo Hyun Yoon, Chong Jai Kim, Offer Erez
OBJECTIVE: The aim of this study was to determine the association between chronic placental inflammation and amniotic fluid (AF) markers of maternal anti-fetal rejection as well as the presence of microorganisms in the AF fluid of patients with fetal death. STUDY DESIGN: This cohort study included 40 patients with fetal death whose placentas were examined for chronic inflammatory lesions and whose AF chemokine ligand (CXCL)10 and interleukin (IL)-6 concentrations were determined by immunoassays...
October 26, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28852568/etiology-of-acute-respiratory-disease-in-fattening-pigs-in-finland
#13
Minna Haimi-Hakala, Outi Hälli, Tapio Laurila, Mirja Raunio-Saarnisto, Tiina Nokireki, Taina Laine, Suvi Nykäsenoja, Kirsti Pelkola, Joaquim Segales, Marina Sibila, Claudio Oliviero, Olli Peltoniemi, Sinikka Pelkonen, Mari Heinonen
BACKGROUND: The objective of our study was to clinically and etiologically investigate acute outbreaks of respiratory disease in Finland. Our study also aimed to evaluate the clinical use of various methods in diagnosing respiratory infections under field conditions and to describe the antimicrobial resistance profile of the main bacterial pathogen(s) found during the study. METHODS: A total of 20 case herds having finishing pigs showing acute respiratory symptoms and eight control herds showing no clinical signs suggesting of respiratory problems were enrolled in the study...
2017: Porcine Health Management
https://www.readbyqxmd.com/read/28741603/role-of-the-lung-microbiome-in-the-pathogenesis-of-chronic-obstructive-pulmonary-disease
#14
REVIEW
Lei Wang, Ke Hao, Ting Yang, Chen Wang
OBJECTIVE: The development of culture-independent techniques for microbiological analysis shows that bronchial tree is not sterile in either healthy or chronic obstructive pulmonary disease (COPD) individuals. With the advance of sequencing technologies, lung microbiome has become a new frontier for pulmonary disease research, and such advance has led to better understanding of the lung microbiome in COPD. This review aimed to summarize the recent advances in lung microbiome, its relationships with COPD, and the possible mechanisms that microbiome contributed to COPD pathogenesis...
September 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28734862/respiratory-infections-and-antibiotic-usage-in-common-variable-immunodeficiency
#15
Johannes M Sperlich, Bodo Grimbacher, Sarita Workman, Tanzina Haque, Suranjith L Seneviratne, Siobhan O Burns, Veronika Reiser, Werner Vach, John R Hurst, David M Lowe
BACKGROUND: Patients with common variable immunodeficiency (CVID) suffer frequent respiratory tract infections despite immunoglobulin replacement and are prescribed significant quantities of antibiotics. The clinical and microbiological nature of these exacerbations, the symptomatic triggers to take antibiotics, and the response to treatment have not been previously investigated. OBJECTIVES: To describe the nature, frequency, treatment, and clinical course of respiratory tract exacerbations in patients with CVID and to describe pathogens isolated during respiratory tract exacerbations...
July 19, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28719310/severity-of-pneumonia-in-under-5-year-old-children-from-developing-countries-a-multicenter-prospective-observational-study
#16
MULTICENTER STUDY
Thomas Bénet, Valentina Sanchez Picot, Shally Awasthi, Nitin Pandey, Ashish Bavdekar, Anand Kawade, Annick Robinson, Mala Rakoto-Andrianarivelo, Maryam Sylla, Souleymane Diallo, Graciela Russomando, Wilma Basualdo, Florence Komurian-Pradel, Hubert Endtz, Philippe Vanhems, Gláucia Paranhos-Baccalà, For The Gabriel Network
Pneumonia is the leading cause of death in children. The objectives were to evaluate the microbiological agents linked with hypoxemia in hospitalized children with pneumonia from developing countries, to identify predictors of hypoxemia, and to characterize factors associated with in-hospital mortality. A multicenter, observational study was conducted in five hospitals, from India (Lucknow, Vadu), Madagascar (Antananarivo), Mali (Bamako), and Paraguay (San Lorenzo). Children aged 2-60 months with radiologically confirmed pneumonia were enrolled prospectively...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28711782/the-human-microbiome
#17
REVIEW
Hubert E Blum
Until recently, human microbiology was based on the identification of single microbes, such as bacteria, fungi and viruses, frequently isolated from patients with acute or chronic infections. Novel culture-independent molecular biochemical analyses (genomics, transcriptomics, proteomics, metabolomics) allow today to detect and classify the diverse microorganisms in a given ecosystem (microbiota), such as the gastrointestinal tract, the skin, the airway system, the urogenital tract and others, and to assess all genomes in these ecosystems (microbiome) as well as their gene products...
September 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/28672875/light-assisted-advanced-oxidation-processes-for-the-elimination-of-chemical-and-microbiological-pollution-of-wastewaters-in-developed-and-developing-countries
#18
REVIEW
Stefanos Giannakis, Sami Rtimi, Cesar Pulgarin
In this work, the issue of hospital and urban wastewater treatment is studied in two different contexts, in Switzerland and in developing countries (Ivory Coast and Colombia). For this purpose, the treatment of municipal wastewater effluents is studied, simulating the developed countries' context, while cheap and sustainable solutions are proposed for the developing countries, to form a barrier between effluents and receiving water bodies. In order to propose proper methods for each case, the characteristics of the matrices and the targets are described here in detail...
June 26, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28655582/prevalence-of-clostridium-perfringens-toxin-in-patients-suspected-of-having-antibiotic-associated-diarrhea
#19
Young Jin Kim, Si Hyun Kim, Junggu Ahn, Soongmoon Cho, Dongchun Kim, Kwanghyun Kim, Heegun Lee, Hyunwoo Son, Hee Joo Lee, Dongeun Yong, Jun Yong Choi, Hye Ran Kim, Jeong Hwan Shin
BACKGROUND: Although Clostridium perfringens has been reported as a cause of antibiotic-associated diarrhea (AAD), it is uncommon to detect this pathogen in clinical microbiology laboratories in Korea. The aim of this study was to investigate the prevalence of C. perfringens toxin in patients suspected of having AAD. METHODS: A total of 135 stool specimens submitted to a clinical microbiology laboratory for C. difficile toxin assay were tested. We tried to detect both C...
June 26, 2017: Anaerobe
https://www.readbyqxmd.com/read/28619124/multiplex-tests-to-identify-gastrointestinal-bacteria-viruses-and-parasites-in-people-with-suspected-infectious-gastroenteritis-a-systematic-review-and-economic-analysis
#20
Karoline Freeman, Hema Mistry, Alexander Tsertsvadze, Pam Royle, Noel McCarthy, Sian Taylor-Phillips, Rohini Manuel, James Mason
BACKGROUND: Gastroenteritis is a common, transient disorder usually caused by infection and characterised by the acute onset of diarrhoea. Multiplex gastrointestinal pathogen panel (GPP) tests simultaneously identify common bacterial, viral and parasitic pathogens using molecular testing. By providing test results more rapidly than conventional testing methods, GPP tests might positively influence the treatment and management of patients presenting in hospital or in the community. OBJECTIVE: To systematically review the evidence for GPP tests [xTAG(®) (Luminex, Toronto, ON, Canada), FilmArray (BioFire Diagnostics, Salt Lake City, UT, USA) and Faecal Pathogens B (AusDiagnostics, Beaconsfield, NSW, Australia)] and to develop a de novo economic model to compare the cost-effectiveness of GPP tests with conventional testing in England and Wales...
April 2017: Health Technology Assessment: HTA
keyword
keyword
22691
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"