Download or read book Molecular and serological tools for clinical diagnostics of Lyme borreliosis can the laboratory analysis be improved written by Malin Lager and published by Linköping University Electronic Press. This book was released on 2020-10-20 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lyme borreliosis (LB) is caused by spirochetes within the Borrelia burgdorferi sensu lato complex and is the most common tick-transmitted disease in the northern hemisphere. The transmission of the spirochetes to humans in Europe is done by the Ixodes ricinus ticks, which can also transmit the relapsing fever species Borrelia miyamotoi. LB may cause clinical manifestations in the skin, in the central nervous system, in joints, and in the heart. Diagnosis of LB is mainly based on the patient´s medical history, self-described symptoms, and clinical signs in combination with the detection of Borrelia-specific antibodies (serological methods). In some cases/issues, detection of Borrelia-specific deoxyribonucleic acid (molecular methods) may be used as a complement to serology. All diagnosed LB infections are treated with antibiotics to prevent disease progression, and most patients fully recover without further sequelae. The overall aims of this thesis were to evaluate molecular and serological tools for laboratory diagnosis of LB, with a special focus on Lyme neuroborreliosis (LNB), and to identify potential improvements. The results presented in this thesis showed that the immunoglobulin (Ig) G assays, currently in use in northern Europe for detection of antibodies in serum, had high diagnostic sensitivity (88 %) together with comparable results both between and within assays. For the IgM assays, the diagnostic sensitivity was lower (59 %) with more heterogeneous results. Small variations in diagnostic performance for IgM and IgG were mainly presented for samples within the borderline zone. These results support the theory that separate testing of IgM antibodies in serum has low diagnostic value. However, simultaneous detection in serum and cerebrospinal fluid (CSF) for both IgM and IgG antibodies was essential for the diagnosis of LNB, at least for certain assays. So far (to our knowledge), no systematic evaluation and optimisation of the pre-analytical handling of CSF samples before molecular testing has been performed. By use of the precipitate concentrated by moderate centrifugation, extraction of total nucleic acid followed by reversetranscription to complementary deoxyribonucleic acid, in combination with the absence of polymerase chain reaction (PCR) inhibitors, detection of Borrelia garinii, Borrelia afzelii, Borrelia burgdorferi sensu stricto, and B. miyamotoi was possible. These four species are all known to be pathogenic to humans. The results revealed a high analytical sensitivity and specificity for the optimised pre-analytical conditions. The thesis also presents results showing that the real-time PCR protocols currently used in Scandinavia have high analytical sensitivity, specificity, and concordance. This indicates that the low diagnostic sensitivity for detection of Borrelia in CSF was not a result of poorly designed and evaluated PCR protocols, but was possibly due to the low number of spirochetes in the samples. However, to further evaluate the diagnostic performance for detection of Borrelia in CSF by PCR, clinical samples need to be evaluated based on our new recommendations for the pre-analytical handling of CSF samples. In conclusion, this thesis presents results revealing that both molecular and serological tools for detection of Borrelia have, in general high sensitivity and specificity with results comparable between different protocols and different laboratories. It also presents recommendations for pre-analytical handling of CSF samples before PCR-analysis, and shows the benefits in diagnostic performance by simultaneous detection of IgM and IgG antibodies in serum and CSF for accurate diagnosis of LNB. Even though the techniques mentioned above have high analytical performance, the ability to discriminate an active infection from a previous one is limited and further studies need to be carried out. These studies need to focus on finding diagnostic tools that can help physicians to determine ongoing infection to ensure adequate treatment. It is also desirable to improve the standardisation of the diagnostic tools and to find methods that can discriminate between different Borrelia species. Borrelios är den vanligaste fästingöverförda sjukdomen på norra halvklotet och orsakas av bakterier inom Borrelia burgdorferi sensu lato gruppen. Överföringen av bakterier till människa i Europa sker via Ixodes ricinus fästingar, vilka även överför bakterien Borrelia miyamotoi som ger återfallsfeber. Borreliainfektioner uppvisar kliniska uttryck i huden, i det centrala nervsystemet och i leder. En borrelia-diagnos baseras främst på patientens medicinska historia i kombination med kliniska tecken, egenbeskrivna symptom samt påvisning av Borrelia-specifika antikroppar (serologiska metoder). Vid vissa frågeställningar kan påvisning av Borrelia-bakteriens arvsmassa (molekylärbiologiska metoder) användas som komplement till antikroppstester. Alla diagnostiserade borreliainfektioner behandlas med antibiotika för att förhindra utveckling av sjukdomen och merparten av patienterna blir fullt återställda. Det övergripande syftet med avhandlingen var att utvärdera metoder för påvisning av Borrelia-specifika antikroppar samt Borrelia-specifik arvsmassa, men fokus på neuroborrelios, samt identifiera potentiella förbättringar. De metoder som används för påvisning av immunoglobulin (IgG)-antikroppar (uppträder sent i en infektion) i serum i norra Europa uppvisar hög känslighet (88 %) med jämförbara resultat både mellan och inom en analysmetod. Vid påvisning av IgM-antikroppar (uppträder tidigt i en infektion) i serum uppvisas lägre känslighet (59 %) och mer olikartade resultat. Små variationer i den diagnostiska förmågan att påvisa IgM och IgG-antikroppar beror till stor del på att flera prover erhållit gränsvärden d v s ett värde som inte kan anses som positivt men inte heller som negativt. Resultaten från denna studie indikerar att påvisning av IgM-antikroppar i serum har lågt värde vid diagnostik av Borrelia. Dock bör parallell analys av både IgM och IgG-antikroppar i serum och ryggmärgsvätska utföras vid påvisning av neuroborrelios. I dagsläget (till vår kännedom) har ingen systematisk utvärdering och optimering av det preanalytiska tillvägagångssättet vid påvisning av Borrelia-specifik arvsmassa i ryggmärgsvätska genomförts. Genom att använda pelleten (bottensatsen som erhålls genom måttlig centrifugering), framrening av total nukleinsyra i kombination med frånvaro av material som kan påverka PCR-reaktionen på ett negativt sätt (inhibitorer), kan påvisning av Borreliaarterna Borrelia garinii, Borrelia afzelii, Borrelia burgdorferi sensu stricto och B. miyamotoi ske. Dessa Borrelia-arter är alla patogena för människa. De realtids-PCR protokoll som i dagsläget används i Skandinavien har hög analytisk känslighet, tillförlitlighet och överensstämmelse. Detta tyder på att den låga känslighet som uppvisas vid påvisning av Borrelia-specifik arvsmassa i ryggmärgsvätska inte beror på dåligt utvärderade och designade PCR-protokoll, utan är troligtvis orsakad av låg bakteriemängd i proverna. För vidare utvärdering av den diagnostiska förmågan att påvisa Borrelia-specifik arvsmassa i ryggmärgsvätska med PCR, bör kliniska prover samlas in och analyseras utifrån de nya rekommendationerna för pre-analytiskt tillvägagångssätt vid analys av ryggmärgsprover. Sammanfattningsvis visar resultaten i denna avhandling på generellt hög känslighet och tillförlitlighet samt överensstämmelse mellan olika protokoll/test vid påvisningar av Borreliaspecifika antikroppar och Borrelia-specifik arvsmassa. I avhandlingen presenteras även rekommendationer för pre-analytiskt tillvägagångssätt vid omhändertagande och transport av ryggmärgsvätska till laboratoriet. Resultaten visar även på nyttan i att analysera ryggmärgsvätska och serum parallellt för både IgM och IgG-antikroppar för att erhålla rätt diagnos vid frågeställningen neuroborrelios. Ovan nämnda metoder har trots god prestanda svårt att i alla lägen särskilja en aktiv infektion från en tidigare genomgången, varpå vidare studier krävs. Framtida studier bör fokusera på att finna diagnostiska verktyg som hjälper läkarna att urskilja en pågående infektion så att patienten erhåller passande behandling. Det är också mycket viktigt att arbeta vidare mot en standardisering av de diagnostiska metoderna samt finna metoder som har möjlighet att särskilja mellan olika Borrelia-arter.

Download or read book Lyme Disease written by Ali Karami and published by IntechOpen. This book was released on 2012-02-17 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lyme disease, or Lyme borreliosis, is an emerging infectious disease caused by bacteria belonging to the genus borrelia. Borrelia burgdorferi, in the strict sense. This book deals mostly with the molecular biology of the Lyme disease agent orrelia burgdorferi. It has been written by experts in the relevant field and is tailored to the need of researchers, advanced students of biology, molecular biology, molecular genetics of microorganism. It will also be of use to infectious disease experts and people in other disciplines needing to know more about Lyme borreliosis. The book contains chapters on the molecular biology of the Lyme disease agent, zoonotic peculiarities of Bb, advancement in Bb antibody testing, the serology diagnostic schemes in Bb, discovering Lyme disease in ticks and dogs, adaptation to glucosamine starvation in Bb, and porins in the genus borrelia.

Download or read book Critical Needs and Gaps in Understanding Prevention Amelioration and Resolution of Lyme and Other Tick Borne Diseases written by Institute of Medicine and published by National Academies Press. This book was released on 2011-07-01 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: A single tick bite can have debilitating consequences. Lyme disease is the most common disease carried by ticks in the United States, and the number of those afflicted is growing steadily. If left untreated, the diseases carried by ticks-known as tick-borne diseases-can cause severe pain, fatigue, neurological problems, and other serious health problems. The Institute of Medicine held a workshop October 11-12, 2010, to examine the state of the science in Lyme disease and other tick-borne diseases.

Download or read book Diagnostic Bacteriology written by Kimberly A. Bishop-Lilly and published by Humana Press. This book was released on 2017-06-10 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a comprehensive collection of protocols on molecular diagnostics of bacteria that will suit the needs of molecular biologists, clinical laboratorians, and physician scientists alike. Chapters detail common bacterial pathogens, protocols that can be applied to diverse or even unknown pathogens, digital PCR, next generation sequencing, and bioinformatic analyses. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Diagnostic Bacteriology: Methods and Protocols delivers a wide range of assay types all on the cutting edge of diagnostic bacteriology.

Download or read book CDC Yellow Book 2018 Health Information for International Travel written by Centers for Disease Control and Prevention CDC and published by Oxford University Press. This book was released on 2017-04-17 with total page 705 pages. Available in PDF, EPUB and Kindle. Book excerpt: THE ESSENTIAL WORK IN TRAVEL MEDICINE -- NOW COMPLETELY UPDATED FOR 2018 As unprecedented numbers of travelers cross international borders each day, the need for up-to-date, practical information about the health challenges posed by travel has never been greater. For both international travelers and the health professionals who care for them, the CDC Yellow Book 2018: Health Information for International Travel is the definitive guide to staying safe and healthy anywhere in the world. The fully revised and updated 2018 edition codifies the U.S. government's most current health guidelines and information for international travelers, including pretravel vaccine recommendations, destination-specific health advice, and easy-to-reference maps, tables, and charts. The 2018 Yellow Book also addresses the needs of specific types of travelers, with dedicated sections on: · Precautions for pregnant travelers, immunocompromised travelers, and travelers with disabilities · Special considerations for newly arrived adoptees, immigrants, and refugees · Practical tips for last-minute or resource-limited travelers · Advice for air crews, humanitarian workers, missionaries, and others who provide care and support overseas Authored by a team of the world's most esteemed travel medicine experts, the Yellow Book is an essential resource for travelers -- and the clinicians overseeing their care -- at home and abroad.

Download or read book Molecular Diagnostics of Infectious Diseases written by Harald H. Kessler and published by Walter de Gruyter GmbH & Co KG. This book was released on 2014-07-28 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: The prevalence of infectious diseases is worldwide increasing. Therefore, detection methods for infectious pathogens change quickly. In the 3rd edition of Kessler ́s Molecular Diagnostics of Infectious Diseases laboratory professionalists get valueable information about the current diagnostic methods, tipps and tricks in terms of sample processing, quality control, and interpretation of the results. For clinicians the book is a valuable aid for decision-making in ordering appropriate tests as well as in assuring the necessary quality of the sample material.

Download or read book Conquering Lyme Disease written by Brian A. Fallon and published by Columbia University Press. This book was released on 2017-12-12 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lyme disease is the most common tick-borne illness in the United States, with more than 300,000 cases diagnosed each year. However, doctors are deeply divided on how to diagnose and treat it, giving rise to the controversy known as the “Lyme Wars.” Firmly entrenched camps have emerged, causing physicians, patient communities, and insurance providers to be pitted against one another in a struggle to define Lyme disease and its clinical challenges. Health care providers may not be aware of its diverse manifestations or the limitations of diagnostic tests. Meanwhile, patients have felt dismissed by their doctors and confused by the conflicting opinions and dubious self-help information found online. In this authoritative book, the Columbia University Medical Center physicians Brian A. Fallon and Jennifer Sotsky explain that, despite the vexing “Lyme Wars,” there is cause for both doctors and patients to be optimistic. The past decade’s advances in precision medicine and biotechnology are reshaping our understanding of Lyme disease and accelerating the discovery of new tools to diagnose and treat it, such that the great divide previously separating medical communities is now being bridged. Drawing on both extensive clinical experience and cutting-edge research, Fallon, Sotsky, and their colleagues present these paradigm-shifting breakthroughs in language accessible to both sides. They clearly explain the immunologic, infectious, and neurologic basis of chronic symptoms, the cognitive and psychological impact of the disease, as well as current and emerging diagnostic tests, treatments, and prevention strategies. Written for the educated patient and health care provider seeking to learn more, Conquering Lyme Disease gives an up-to-the-minute overview of the science that is transforming the way we address this complex illness. It argues forcefully that the expanding plague of Lyme and other tick-borne diseases can be confronted successfully and may soon even be reversed.

Download or read book Molecular Diagnostics written by Wayne W. Grody and published by Academic Press. This book was released on 2009-11-06 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in genomic and proteomic profiling of disease have transformed the field of molecular diagnostics, thus leading the way for a major revolution in clinical practice. While the range of tests for disease detection and staging is rapidly expanding, many physicians lack the knowledge required to determine which tests to order and how to interpret results. Molecular Diagnostics provides a complete guide to the use and interpretation of molecular testing in the clinical arena. No other available resource offers this emphasis, comprehensive scope, and practical utility in the clinical setting. Serves as the definitivereference for molecular pathologists worldwide Covers a variety of molecular techniques including next generation sequencing, tumor somatic cell genotyping, infectious and genetic disease tecting, and pharmacogenetics Discusses in the detail issues concerning quality assurance, regulation, ethics, and future directions for the science

Download or read book Clinical Case Studies for the Family Nurse Practitioner written by Leslie Neal-Boylan and published by John Wiley & Sons. This book was released on 2011-11-28 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clinical Case Studies for the Family Nurse Practitioner is a key resource for advanced practice nurses and graduate students seeking to test their skills in assessing, diagnosing, and managing cases in family and primary care. Composed of more than 70 cases ranging from common to unique, the book compiles years of experience from experts in the field. It is organized chronologically, presenting cases from neonatal to geriatric care in a standard approach built on the SOAP format. This includes differential diagnosis and a series of critical thinking questions ideal for self-assessment or classroom use.

Download or read book Lyme Borreliosis written by J. Gray and published by CABI. This book was released on 2002-10-04 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lyme borreliosis commonly known as lyme disease is now acknowledged as the most highly prevalent arthropod-borne human disease in northern temperate regions of the world. This book describes the basic characteristics of the disease, the biology of the pathogens in their vectors and vertebrate hosts, their ecology in different regions of the world and the global epidemiology of the disease. The final chapters address the prevention and control measures that have resulted from this knowledge.

Download or read book Blood and Tissue Parasites written by James W. Smith and published by Amer Society of Clinical. This book was released on 1985 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines parasites that cause malaria, babesiosis, trypanosomiasis, leishmaniasis, toxoplasmosis, pneumocytosis and filariasis.

Download or read book Infectious Disease Surveillance written by Nkuchia M. M'ikanatha and published by John Wiley & Sons. This book was released on 2013-03-11 with total page 1139 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fully updated edition of Infectious Disease Surveillance is for frontline public health practitioners, epidemiologists, and clinical microbiologists who are engaged in communicable disease control. It is also a foundational text for trainees in public health, applied epidemiology, postgraduate medicine and nursing programs. The second edition portrays both the conceptual framework and practical aspects of infectious disease surveillance. It is a comprehensive resource designed to improve the tracking of infectious diseases and to serve as a starting point in the development of new surveillance systems. Infectious Disease Surveillance includes over 45 chapters from over 100 contributors, and topics organized into six sections based on major themes. Section One highlights the critical role surveillance plays in public health and it provides an overview of the current International Health Regulations (2005) in addition to successes and challenges in infectious disease eradication. Section Two describes surveillance systems based on logical program areas such as foodborne illnesses, vector-borne diseases, sexually transmitted diseases, viral hepatitis healthcare and transplantation associated infections. Attention is devoted to programs for monitoring unexplained deaths, agents of bioterrorism, mass gatherings, and disease associated with international travel. Sections Three and Four explore the uses of the Internet and wireless technologies to advance infectious disease surveillance in various settings with emphasis on best practices based on deployed systems. They also address molecular laboratory methods, and statistical and geospatial analysis, and evaluation of systems for early epidemic detection. Sections Five and Six discuss legal and ethical considerations, communication strategies and applied epidemiology-training programs. The rest of the chapters offer public-private partnerships, as well lessons from the 2009-2010 H1N1 influenza pandemic and future directions for infectious disease surveillance.

Download or read book Rickettsial Diseases written by Didier Raoult and published by CRC Press. This book was released on 2007-04-26 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only available reference to comprehensively discuss the common and unusual types of rickettsiosis in over twenty years, this book will offer the reader a full review on the bacteriology, transmission, and pathophysiology of these conditions. Written from experts in the field from Europe, USA, Africa, and Asia, specialists analyze specific patho

Download or read book Immunohistochemistry in Diagnostic Dermatopathology written by Mai P. Hoang and published by Cambridge University Press. This book was released on 2017-09-28 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of only a few textbooks on the market dedicated to the important role of immunohistochemistry in diagnostic dermatopathology.

Download or read book Anthrax in Humans and Animals written by World Health Organization and published by World Health Organization. This book was released on 2008 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fourth edition of the anthrax guidelines encompasses a systematic review of the extensive new scientific literature and relevant publications up to end 2007 including all the new information that emerged in the 3-4 years after the anthrax letter events. This updated edition provides information on the disease and its importance, its etiology and ecology, and offers guidance on the detection, diagnostic, epidemiology, disinfection and decontamination, treatment and prophylaxis procedures, as well as control and surveillance processes for anthrax in humans and animals. With two rounds of a rigorous peer-review process, it is a relevant source of information for the management of anthrax in humans and animals.

Download or read book Pet bird diseases and care written by Indranil Samanta and published by Springer. This book was released on 2017-02-24 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides fundamental information on pet birds, menaces, and advances made in the diagnosis and treatment of menaces. It is the only book covering all species of pet birds, menaces and their individual management. The handful of related books available worldwide are largely outdated and focus on a single species or breed of pet bird. The book encompasses the history of bird keeping, common breeds of birds, their nutritional requirements, list of zoonotic diseases transmitted by birds and guideline for their prevention. It covers infectious, non-infectious clinical and metabolic diseases, and toxicity in detail with a special focus on the history of diseases, etiology, affected hosts, pathogenesis, clinical signs, diagnosis and treatment. Separate chapters detail relevant diagnostic techniques, management and care practices, including updated information. The book offers an invaluable guide for students and teachers in the field of (avian) veterinary medicine, scientists/research scholars working in related fields, and avian medicine practitioners, as well as all those progressive bird owners who want to know the basics of their care and management.

Download or read book Genomics and Biotechnological Advances in Veterinary Poultry and Fisheries written by Yashpal Singh Malik and published by Academic Press. This book was released on 2019-09-14 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genomics and Biotechnological Advances in Veterinary, Poultry, and Fisheries is a comprehensive reference for animal biotechnologists, veterinary clinicians, fishery scientists, and anyone who needs to understand the latest advances in the field of next generation sequencing and genomic editing in animals and fish. This essential reference provides information on genomics and the advanced technologies used to enhance the production and management of farm and pet animals, commercial and non-commercial birds, and aquatic animals used for food and research purposes. This resource will help the animal biotechnology research community understand the latest knowledge and trends in this field. Presents biological applications of cattle, poultry, marine and animal pathogen genomics Discusses the relevance of biomarkers to improve farm animals and fishery Includes recent approaches in cloning and transgenic cattle, poultry and fish production