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https://www.readbyqxmd.com/read/28343909/pneumonia
#1
REVIEW
Thomas A Hooven, Richard A Polin
Neonatal pneumonia may occur in isolation or as one component of a larger infectious process. Bacteria, viruses, fungi, and parasites are all potential causes of neonatal pneumonia, and may be transmitted vertically from the mother or acquired from the postnatal environment. The patient's age at the time of disease onset may help narrow the differential diagnosis, as different pathogens are associated with congenital, early-onset, and late-onset pneumonia. Supportive care and rationally selected antimicrobial therapy are the mainstays of treatment for neonatal pneumonia...
March 23, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28334924/throat-swabs-in-children-with-respiratory-tract-infection-associations-with-clinical-presentation-and-potential-targets-for-point-of-care-testing
#2
Hannah V Thornton, Alastair D Hay, Niamh M Redmond, Sophie L Turnbull, Hannah Christensen, Tim J Peters, John P Leeming, Andrew Lovering, Barry Vipond, Peter Muir, Peter S Blair
Background and objectives.: Diagnostic uncertainty over respiratory tract infections (RTIs) in primary care contributes to over-prescribing of antibiotics and drives antibiotic resistance. If symptoms and signs predict respiratory tract microbiology, they could help clinicians target antibiotics to bacterial infection. This study aimed to determine relationships between symptoms and signs in children presenting to primary care and microbes from throat swabs. Methods.: Cross-sectional study of children ≥3 months to <16 years presenting with acute cough and RTI, with subset follow-up...
February 18, 2017: Family Practice
https://www.readbyqxmd.com/read/28326066/beneficial-microorganisms-for-corals-bmc-proposed-mechanisms-for-coral-health-and-resilience
#3
REVIEW
Raquel S Peixoto, Phillipe M Rosado, Deborah Catharine de Assis Leite, Alexandre S Rosado, David G Bourne
The symbiotic association between the coral animal and its endosymbiotic dinoflagellate partner Symbiodinium is central to the success of corals. However, an array of other microorganisms associated with coral (i.e., Bacteria, Archaea, Fungi, and viruses) have a complex and intricate role in maintaining homeostasis between corals and Symbiodinium. Corals are sensitive to shifts in the surrounding environmental conditions. One of the most widely reported responses of coral to stressful environmental conditions is bleaching...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28285331/evaluating-next-generation-sequencing-for-direct-clinical-diagnostics-in-diarrhoeal-disease
#4
K G Joensen, A L Ø Engsbro, O Lukjancenko, R S Kaas, O Lund, H Westh, F M Aarestrup
The accurate microbiological diagnosis of diarrhoea involves numerous laboratory tests and, often, the pathogen is not identified in time to guide clinical management. With next-generation sequencing (NGS) becoming cheaper, it has huge potential in routine diagnostics. The aim of this study was to evaluate the potential of NGS-based diagnostics through direct sequencing of faecal samples. Fifty-eight clinical faecal samples were obtained from patients with diarrhoea as part of the routine diagnostics at Hvidovre University Hospital, Denmark...
March 11, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28270584/viruses-in-the-oceanic-basement
#5
Olivia D Nigro, Sean P Jungbluth, Huei-Ting Lin, Chih-Chiang Hsieh, Jaclyn A Miranda, Christopher R Schvarcz, Michael S Rappé, Grieg F Steward
Microbial life has been detected well into the igneous crust of the seafloor (i.e., the oceanic basement), but there have been no reports confirming the presence of viruses in this habitat. To detect and characterize an ocean basement virome, geothermally heated fluid samples (ca. 60 to 65°C) were collected from 117 to 292 m deep into the ocean basement using seafloor observatories installed in two boreholes (Integrated Ocean Drilling Program [IODP] U1362A and U1362B) drilled in the eastern sediment-covered flank of the Juan de Fuca Ridge...
March 7, 2017: MBio
https://www.readbyqxmd.com/read/28260599/peritonsillar-abscess-clinical-aspects-of-microbiology-risk-factors-and-the-association-with-parapharyngeal-abscess
#6
REVIEW
Tejs Ehlers Klug
PTA is a collection of pus located between the tonsillar capsule and the pharyngeal constrictor muscle. It is considered a complication of acute tonsillitis and is the most prevalent deep neck infection (approximately 2000 cases annually in Denmark) and cause of acute admission to Danish ENT departments. Teenagers and young adults are most commonly affected and males may predominate over females. However, no studies of age- and gender-stratified incidence rates have previously been published. Furthermore, smoking may be associated with increased risk of peritonsillar abscess (PTA) development, although the magnitude of the association has not been estimated...
March 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28238506/rapid-diagnosis-of-gastrointestinal-tract-infections-due-to-parasites-viruses-and-bacteria
#7
Luz Balsalobre-Arenas, Teresa Alarcón-Cavero
Rapid diagnostic techniques are valuable tools in the diagnosis of gastrointestinal infections, especially for the detection of some microorganisms and in certain groups of patients. While antigen detection techniques are widely used in Clinical Microbiology laboratories, for the diagnosis of viruses, some parasites and some bacteria, molecular techniques are routinely used only for some pathogens (such as Clostridium difficile). However, molecular techniques are constantly evolving, and they allow a rapid diagnosis for an increasing number of pathogens, with high sensitivity and specificity...
February 23, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28192237/untargeted-next-generation-sequencing-based-first-line-diagnosis-of-infection-in-immunocompromised-adults-a-multicentre-blinded-prospective-study
#8
Perrine Parize, Erika Muth, Clémence Richaud, Marlène Gratigny, Benoit Pilmis, Arnaud Lamamy, Jean-Luc Mainardi, Justine Cheval, Louise de Visser, Florence Jagorel, Laura Ben Yahia, Geraldine Bamba, Myriam Dubois, Olivier Join-Lambert, Marianne Leruez-Ville, Xavier Nassif, Agnes Lefort, Fanny Lanternier, Felipe Suarez, Olivier Lortholary, Marc Lecuit, Marc Eloit
OBJECTIVE: Infections are the major cause of morbidity and mortality in immunocompromised patients. Improving microbiological diagnosis in these patients is of paramount clinical importance. METHODS: We performed this multicentre, blinded, prospective, proof-of-concept study, to compare untargeted next-generation sequencing with conventional microbiological methods for first-line diagnosis of infection in 101 immunocompromised adults. Patients were followed for 30 days and their blood samples, and in some cases nasopharyngeal swabs and/or biological fluids, were analysed...
February 10, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28139956/bacterial-microbiota-in-harbor-seals-phoca-vitulina-from-the-north-sea-of-schleswig-holstein-germany-around-the-time-of-morbillivirus-and-influenza-epidemics
#9
Ursula Siebert, Marion Rademaker, Sophie A Ulrich, Peter Wohlsein, Katrin Ronnenberg, Ellen Prenger-Berninghoff
We present microbiologic findings in harbor seal (phoca; Phoca vitulina ) carcasses collected from the North Sea of Schleswig-Holstein, Germany, 1996-2014, and interpret results in relation to potential variations caused by phocine distemper virus and influenza A virus mass mortalities. We conducted microbiologic investigations on 2,124 tissue samples from lung, liver, kidney, spleen, intestine, and mesenteric lymph nodes from 549 dead harbor seals of the German North Sea. A large variety of bacteria, including potentially pathogenic species such as Bordetella bronchiseptica , Brucella spp...
January 31, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28109329/what-makes-a-prion-infectious-proteins-from-animals-to-yeast
#10
K S MacLea
While philosophers in ancient times had many ideas for the cause of contagion, the modern study of infective agents began with Fracastoro's 1546 proposal that invisible "spores" spread infectious disease. However, firm categorization of the pathogens of the natural world would need to await a mature germ theory that would not arise for 300 years. In the 19th century, the earliest pathogens described were bacteria and other cellular microbes. By the close of that century, the work of Ivanovsky and Beijerinck introduced the concept of a virus, an infective particle smaller than any known cell...
2017: International Review of Cell and Molecular Biology
https://www.readbyqxmd.com/read/27891182/case-control-study-of-diarrheal-disease-etiology-in-individuals-over-5%C3%A2-years-in-southwest-china
#11
Shun-Xian Zhang, Chun-Li Yang, Wen-Peng Gu, Lin Ai, Emmanuel Serrano, Pin Yang, Xia Zhou, Shi-Zhu Li, Shan Lv, Zhi-Sheng Dang, Jun-Hu Chen, Wei Hu, Li-Guang Tian, Jia-Xu Chen, Xiao-Nong Zhou
BACKGROUND: Acute diarrhea is one of the major public health problems worldwide. Most of studies on acute diarrhea have been made on infants aged below 5 years and few efforts have been made to identify the etiological agents of acute diarrhea in people over five, especially in China. METHODS: 271 diarrhea cases and 149 healthy controls over 5 years were recruited from four participating hospitals between June 2014 and July 2015. Each stool specimen was collected to detect a series of enteric pathogens, involving five viruses (Rotavirus group A, RVA; Norovirus, NoV; Sapovirus, SaV; Astrovirus, As; and Adenovirus, Ad), seven bacteria (diarrheagenic Escherichia coli, DEC; non-typhoidal Salmonella, NTS; Shigella spp...
2016: Gut Pathogens
https://www.readbyqxmd.com/read/27872722/production-of-monoclonal-antibody-against-recombinant-ns3-protein-of-bovine-viral-diarrhea-virus-nadl-strain
#12
Masood Reza Seyfi Abad Shapouri, Maryam Ekhtelat, Masood Ghorbanpoor Najaf Abadi, Mohsen Lotfi, Mohamad Rashno
This study was conducted to investigate the prevalence of subclinical mastitis caused by Staphylococcus spp. in ewes in West-Azerbaijan province of Iran. Molecular characterization of isolated Staphylococcus spp. from diseased ewes were performed using polymerase chain reaction (PCR) followed by restriction fragment length polymorphism (RFLP) and DNA sequencing of glyceraldehyde-3-phosphate dehydrogenase (gap) gene. Also, antibiotic resistance of staphylococcal isolates against different antibiotics was investigated...
2016: Veterinary Research Forum
https://www.readbyqxmd.com/read/27853598/the-evolutionary-ecology-of-molecular-replicators
#13
Sean Nee
By reasonable criteria, life on the Earth consists mainly of molecular replicators. These include viruses, transposons, transpovirons, coviruses and many more, with continuous new discoveries like Sputnik Virophage. Their study is inherently multidisciplinary, spanning microbiology, genetics, immunology and evolutionary theory, and the current view is that taking a unified approach has great power and promise. We support this with a new, unified, model of their evolutionary ecology, using contemporary evolutionary theory coupling the Price equation with game theory, studying the consequences of the molecular replicators' promiscuous use of each others' gene products for their natural history and evolutionary ecology...
August 2016: Royal Society Open Science
https://www.readbyqxmd.com/read/27825484/acanthamoeba-spp-as-a-universal-host-for-pathogenic-microorganisms-one-bridge-from-environment-to-host-virulence
#14
REVIEW
Allan J Guimaraes, Kamilla Xavier Gomes, Juliana Reis Cortines, José Mauro Peralta, Regina H Saramago Peralta
Free-living amoebas (FLA) are ubiquitous environmental protists that have enormously contributed to the microbiological contamination of water sources. FLAs have displayed resistance to environmental adversities and germicides and have played important roles in the population control of microbial communities due to its predatory behavior and microbicidal activity. However, some organisms have developed resistance to the intracellular milieu of amoebas, as in the case of Acanthamoebas, which in turn, have been functioning as excellent reservoirs for amoeba-resistant microorganisms (ARMs), such as bacteria, viruses and fungi...
December 2016: Microbiological Research
https://www.readbyqxmd.com/read/27799762/c-reactive-protein-in-outpatients-with-acute-exacerbation-of-copd-its-relationship-with-microbial-etiology-and-severity
#15
Miguel Gallego, Xavier Pomares, Silvia Capilla, Maria Angeles Marcos, David Suárez, Eduard Monsó, Concepción Montón
BACKGROUND: C-reactive protein (CRP) measurement has proven valuable for detecting exacerbations, but its usefulness in predicting etiology remains controversial. Likewise, its potential value as a marker of severity, which is well established in patients with pneumonia, remains unproven in chronic obstructive pulmonary disease (COPD) exacerbations. METHODS: A cohort study of 118 patients with severe COPD and acute infectious exacerbations were included and followed up over 1 year...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27795876/a-study-of-parasitic-and-bacterial-pathogens-associated-with-diarrhea-in-hiv-positive-patients
#16
Siddharth Shah, Vaishali Kongre, Varun Kumar, Renu Bharadwaj
INTRODUCTION: Diarrhea is a common complication of acquired immune deficiency syndrome (AIDS), occurring in almost 90% of AIDS patients in developing countries like India. The present study was aimed to determine the prevalence and microbiological profile of pathogens associated with diarrhea in human immunodeficiency virus (HIV) positive patients and their relation to CD4 counts. MATERIALS AND METHODS: Forty-five successive HIV-positive patients, 27 with diarrhea (study group) and 18 without diarrhea (control group), were included in the three-month study...
September 27, 2016: Curēus
https://www.readbyqxmd.com/read/27790507/fungal-infection-in-thermal-burns-a-prospective-study-in-a-tertiary-care-centre
#17
Sanjeev Sharma, Deepak Bajaj, Pritika Sharma
INTRODUCTION: Burn Wound Infection (BWI) is primarily caused by aerobic bacteria followed by fungi, anaerobes and viruses. There has been a worldwide decrease in incidence of bacterial infections in burns due to better patient care and availability of effective antibiotics. Consequently, the fungal burn wound infection has shown an increasing trend. AIM: The aim of study was to assess the frequency of fungal infections in thermal burn wounds with respect to age of wounds, total body surface involved, depth of burns and to assess common fungal pathogens...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27748568/how-do-we-make-indoor-environments-and-healthcare-settings-healthier
#18
Jack A Gilbert
It is now well accepted that our modern lifestyle has certain implications for our health (Schaub et al., ), mainly as a result of our willingness to remove ourselves from the biological diversity of our natural environments (Roduit et al., ), while still being drawn inextricably to interact with it (Kellert and Wilson, ). Much of our interaction with the biological world is shaped by our interaction with the microbiological world. The bacteria, fungi, viruses, archaea and protists that comprise the microbiome of this planet, are also key to the development and normal functioning of our bodies...
January 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/27726817/skin-and-soft-tissue-infections
#19
Anne Spichler Moffarah, Mayar Al Mohajer, Bonnie L Hurwitz, David G Armstrong
The skin is colonized by a diverse collection of microorganisms which, for the most part, peacefully coexist with their hosts. Skin and soft tissue infections (SSTIs) encompass a variety of conditions; in immunocompromised hosts, SSTIs can be caused by diverse microorganisms-most commonly bacteria, but also fungi, viruses, mycobacteria, and protozoa. The diagnosis of SSTIs is difficult because they may commonly masquerade as other clinical syndromes or can be a manifestation of systemic disease. In immunocompromised hosts, SSTI poses a major diagnostic challenge, and clinical dermatological assessment should be initially performed; to better identify the pathogen and to lead to appropriate treatment, etiology should include cultures of lesions and blood, biopsy with histology, specific microbiological analysis with special stains, molecular techniques, and antigen-detection methodologies...
August 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/27615035/extended-microbiological-characterization-of-g%C3%A3-ttingen-minipigs-porcine-cytomegalovirus-and-other-viruses
#20
Vladimir A Morozov, Elena Plotzki, Avi Rotem, Uriel Barkai, Joachim Denner
BACKGROUND: To prevent transmission of zoonotic microorganisms from pig transplants to human recipients when performing xenotransplantation using pig cells, tissues, or organs, donor pigs have to be carefully characterized. Göttingen minipigs (GöMP) are often used for various biomedical investigations and are well characterized concerning the presence of numerous bacteria, fungi, viruses, and parasites. Recently, we studied the prevalence and expression of porcine endogenous retroviruses and the prevalence of hepatitis E virus (HEV) in GöMP...
November 2016: Xenotransplantation
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