Transmission, Colonization, and Molecular Pathogenesis of pneumococcus PDF Download

Author: Jorge Eugenio Vidal
Publisher: Frontiers Media SA
ISBN: 2832503241
Category : Science
Languages : en
Pages : 231

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Book Description

Author: Guangchun Bai
Publisher: Frontiers Media SA
ISBN: 2889452786
Category :
Languages : en
Pages : 112

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Book Description
Streptococcus pneumoniae has been for decades the number one bacterial killer of children in the world. Although vaccination with pneumococcal vaccines [PCV7, PCV10, and PCV13 (children) or PPSV23 (adults)] has helped decrease the burden of pneumococcal disease (PD), mortality remains high. Therefore, pathogenesis studies are still key toward our understanding of PD and its control. The introduction of pneumococcal vaccines has also created a niche for vaccine-escape clones. Moreover, the rise of multi-drug resistant clones around the world has also posed a serious threat in recent years. The proposed special issue of Frontiers in Cellular and Infection Microbiology highlights many of the recent advances that have been made in pneumococcal pathogenesis, colonization and antibiotic resistance by groups in Latino America, Europe, and the USA.

Author: Jorge Eugenio Vidal
Publisher: Frontiers Media SA
ISBN: 2889749398
Category : Science
Languages : en
Pages : 125

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Book Description
Streptococcus pneumoniae (the pneumococcus) is a commensal of the human nasopharynx during childhood, but also causes a variety of infections, such as otitis media (OM), pneumonia, bacteremia, and meningitis, mainly affecting infants, the elderly and immunocompromised patients. Pneumococcal pneumonia alone produces more child deaths, every year, than any other bacterial disease worldwide. To date, more than 90 distinct capsular serotypes have been identified. Current pneumococcal conjugate vaccines (PCV) protect against 7, 10 or 13 different pneumococcal types. These vaccines have decreased the burden of pneumococcal disease produced by vaccine types but provide poor protection against non-vaccine serotypes. Additionally, the increasing prevalence of multi-drug resistant S. pneumoniae strains results in more challenge for treatment of pneumococcal infections. Therefore, it is imperative to continue investigating the molecular pathogenesis of the pneumococcus. There are currently a variety of key virulence determinants known to be involved in pathogenesis of pneumococcal disease. Virulence factors and host immune defense are major players during pathogen - host interactions. Some metabolic pathways have also been shown to play a role in pneumococcal pathogenesis. These metabolic pathways include proteins involved in copper efflux, arginine metabolism, and zinc homeostasis. From the human host side, new host factors have been found to play essential roles in clearance of S. pneumoniae during infection, such as microRNA-155. Moreover, biofilm-like structures may alter both pneumococcal phenotypes and the host immunity during nasopharyngeal carriage and/or during disease. Understanding the interaction between pneumococcus and its human host is a key to combat pneumococcal infections. It has been well known for several years that pneumococcal pneumonia is worsened during poly-microbial infection. During the past few years, rapid progress has been made in this area. For example, it was recently shown that influenza A virus increases pneumococcal nasal colonization and it is a risk factor for pneumococcal pneumonia. Other important respiratory viruses and bacterial pathogens, such as Moraxella catarrhalis and Haemophilus influenzae, appear to increase the risk of pneumococcal colonization and disease. A better understanding of the molecular mechanism leading to these pathogenic synergisms will provide a fundamental basis for prevention and treatment of secondary pneumococcal infection. The elderly population is generally more susceptible to pneumococcal infections. In addition to their declined immunity, alteration of the microbiome seen in the elderly may play a role for the susceptibility of infection. Research with the elderly or using elderly animal infection models will largely enhance our knowledge and significantly reduce the morbidity and mortality caused by pneumococcal infections.

Author: Elaine I. Tuomanen
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 480

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Book Description
A state-of-the-art examination of research in this field and the impact of this gram-positive pathogen on human disease. * Provides coverage of topics in basic microbiology such as details of DNA transformation, molecular and medical epidemiology, the molecular basis of invasive disease, and various interactions with host defenses. * Presents important historical information on the field of pneumococcal research and suggests strategies for future investigation. * Serves as a valuable source of information for graduate and medical school students, infectious disease specialists, and field researchers in the pathogenesis of gram-positive bacteria.

Author:
Publisher: Academic Press
ISBN: 0080860567
Category : Science
Languages : en
Pages : 643

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Book Description
Established almost 30 years ago, Methods in Microbiology is the most prestigious series devoted to techniques and methodology in the field. Now totally revamped, revitalized, with a new format and expanded scope, Methods in Microbiology will continue to provide you with tried and tested, cutting-edge protocols to directly benefit your research. - Focuses on the methods most useful for the microbiologist interested in the way in which bacteria cause disease - Includes section devoted to 'Approaches to characterising pathogenic mechanisms' by Stanley Falkow - Covers safety aspects, detection, identification and speciation - Includes techniques for the study of host interactions and reactions in animals and plants - Describes biochemical and molecular genetic approaches - Essential methods for gene expression and analysis - Covers strategies and problems for disease control

Author: Dani S. Zander
Publisher: Elsevier Health Sciences
ISBN: 143772048X
Category : Medical
Languages : en
Pages : 853

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Book Description
This volume in the Foundations in Diagnostic Pathology Series packs today's most essential pulmonary pathology into a compact, high-yield format! It covers both common and rare neoplastic and non-neoplastic diseases of the lung and pleura and focuses primarily on diagnosis with correlations to clinical and radiographic characteristics. Its pragmatic, well-organized approach, abundant full-color illustrations, and at-a-glance boxes and tables make the information you need easy to access. Practical and affordable, this resource is ideal for study and review as well as everyday clinical practice! Detailed discussions on today’s technologies help you select the best test for case evaluation. Chapters devoted to the techniques used in the assessment of pulmonary diseases, including immunohistochemistry, immunofluorescnece, and certain clinical laboratory tests offer you a better understanding of techniques and their application for the diagnosis of lung disease. Internationally recognized pathologists convey the most current information, keeping you on the cusp of your field. More than 800 photomicrographs and gross photographs—most in full color—present important pathologic features, enabling you to form a differential diagnosis and compare your findings with actual cases. Uses a consistent, user-friendly format, including at-a-glance boxes and tables for easy reference.

Author: Richard L. Kradin
Publisher: Elsevier Health Sciences
ISBN: 0323508677
Category : Medical
Languages : en
Pages : 715

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Book Description
Comprehensive and up to date, the Second Edition of Diagnostic Pathology: Infectious Disease, by Dr. Richard Kradin, is an invaluable tool for the accurate diagnosis of any infectious disease?from the common to the most challenging. The organ-based format makes it an especially useful tool for surgical pathologists' daily diagnostic and management issues. High-quality, full-color illustrations and differential diagnosis tables accompany each lesion, clearly depicting how to recognize the morphology of organisms and the spectrum of histological responses that they may cause. - Addresses the most difficult diagnostic issues that practicing or trainee surgical pathologists face when handling infectious disease tissue specimens. - Highlights morphological characteristics and landmarks of tissue samples for easy access to information necessary for signing out a specimen. - Emphasizes the host responses critical in differential diagnosis to serve as a second opinion when non-infectious diagnoses mimic and confound the diagnosis of infection. - Completely revised with the latest diagnostic support and hot topics in the field: - A new chapter on novel techniques in microbiology - A new chapter on eye infections - New coverage of immunohistochemical staining and other molecular diagnostic techniques - New discussions of human papillomavirus, a critical tool in predictive cancer screening - New information on infections in the immunocompromised host and related special considerations - Expert Consult eBook version included with purchase. This enhanced eBook experience allows you to search all of the text, figures, images, videos (including video updates), glossary, and references from the book on a variety of devices.

Author: Sebastian G. B. Amyes
Publisher: OUP Oxford
ISBN: 0191654086
Category : Medical
Languages : en
Pages : 161

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Book Description
Bacteria form a fundamental branch of life. They are the oldest forms of life as we know it, and they are still the most prolific living organisms. They inhabit every part of the Earth's surface, its ocean depths, and even terrains such as boiling hot springs. They are most familiar as agents of disease, but benign bacteria are critical to the recycling of elements and all ecology, as well as to human health. In this Very Short Introduction, Sebastian Amyes explores the nature of bacteria, their origin and evolution, bacteria in the environment, and bacteria and disease. In looking at our efforts to manage co-evolving bacteria, he also considers the challenges of resistance to antibiotics. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

Author:
Publisher:
ISBN:
Category : Communicable diseases
Languages : en
Pages : 56

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Book Description
This plan addresses the need to improve our ability to identify infectious disease threats and respond to them effectively by improving the public health infrastructure at the local, state and federal levels. The goals of the plan are surveillance (detect, promptly investigate, and monitor emerging pathogens, the diseases they cause, and the factors influencing their emergence); applied research (integrate laboratory science and epidemiology to optimize public health practice); prevention and control (enhance communication of public health information about emerging diseases and ensure prompt implementation of prevention strategies); and infrastructure (strengthen local, state, and federal public health infrastructures to support surveillance and implement prevention and control programs).

Author: Douglas Mayers
Publisher: Springer Science & Business Media
ISBN: 1603275959
Category : Medical
Languages : en
Pages : 692

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Book Description
This ? rst edition of Antimicrobial Drug Resistance grew out of a desire by the editors and authors to have a comprehensive resource of information on antimicrobial drug resistance that encompassed the current information available for bacteria, fungi, protozoa and viruses. We believe that this information will be of value to clinicians, epidemiologists, microbiologists, virologists, parasitologists, public health authorities, medical students and fellows in training. We have endeavored to provide this information in a style which would be accessible to the broad community of persons who are concerned with the impact of drug resistance in our cl- ics and across the broader global communities. Antimicrobial Drug Resistance is divided into Volume 1 which has sections covering a general overview of drug resistance and mechanisms of drug resistance ? rst for classes of drugs and then by individual microbial agents including bacteria, fungi, protozoa and viruses. Volume 2 addresses clinical, epidemiologic and public health aspects of drug resistance along with an overview of the conduct and interpretation of speci? c drug resistance assays. Together, these two volumes offer a comprehensive source of information on drug resistance issues by the experts in each topic.