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Author: Anna S. Tikhonenko
Publisher: Springer Science & Business Media
ISBN: 1468417797
Category : Medical
Languages : en
Pages : 297
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Book Description
Mter the discoveryof the tobacco mosaic virus by D. I. Ivanov skU in 1892 [14], the new science of virology was born and began to develop rapidly. The number of viruses now known is enormous and they can infect nearly all animal and plant organisms. Microorganisms themselves are no exception to this rule. Despite intensive study of Vlruses, their origin and nature are still a subject for speculation and hypothesis. The general concept of viruses embraces a wide group of biologically active structures occupying an intermediate position between living and nonliving matter. The dual character of viruses is determined by the fact that, while they do not possess an inde pendent system of metabolism, which is a characteristic feature of every living being, they nevertheless carry within themselves all the necessary information for autoreproduction. A striking feature of the virus is that it consists essentially of two components: a protein envelope and the nucleic acid con tained within it. In contrast to the elementary structural unit of the living or ganism, the cell, which contains two types of nucleic acid (DNA and RNA), the virus particle contains only one type of nucleic acid - either DNA or RNA. It is perhaps this which is responsible for the imperfection of the virus as a living organism.
Author: Anna S. Tikhonenko
Publisher: Springer Science & Business Media
ISBN: 1468417797
Category : Medical
Languages : en
Pages : 297
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Book Description
Mter the discoveryof the tobacco mosaic virus by D. I. Ivanov skU in 1892 [14], the new science of virology was born and began to develop rapidly. The number of viruses now known is enormous and they can infect nearly all animal and plant organisms. Microorganisms themselves are no exception to this rule. Despite intensive study of Vlruses, their origin and nature are still a subject for speculation and hypothesis. The general concept of viruses embraces a wide group of biologically active structures occupying an intermediate position between living and nonliving matter. The dual character of viruses is determined by the fact that, while they do not possess an inde pendent system of metabolism, which is a characteristic feature of every living being, they nevertheless carry within themselves all the necessary information for autoreproduction. A striking feature of the virus is that it consists essentially of two components: a protein envelope and the nucleic acid con tained within it. In contrast to the elementary structural unit of the living or ganism, the cell, which contains two types of nucleic acid (DNA and RNA), the virus particle contains only one type of nucleic acid - either DNA or RNA. It is perhaps this which is responsible for the imperfection of the virus as a living organism.
Author: Neeraja Sankaran
Publisher: University of Pittsburgh Press
ISBN: 0822987716
Category : Science
Languages : en
Pages : 410
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Book Description
In 1965, French microbiologist André Lwoff was awarded the Nobel Prize in Physiology or Medicine for his work on lysogeny—one of the two types of viral life cycles—which resolved a contentious debate among scientists about the nature of viruses. A Tale of Two Viruses is the first study of medical virology to compare the history of two groups of medically important viruses—bacteriophages, which infect bacteria, and sarcoma agents, which cause cancer—and the importance of Lwoff’s discovery to our modern understanding of what a virus is. Although these two groups of viruses may at first glance appear to have little in common, they share uniquely parallel histories. The lysogenic cycle, unlike the lytic, enables viruses to replicate in the host cell without destroying it and to remain dormant in a cell’s genetic material indefinitely, or until induced by UV radiation. But until Lwoff’s discovery of the mechanism of lysogeny, microbiologist Félix d’Herelle and pathologist Peyton Rous, who themselves first discovered and argued for the viral identity of bacteriophages and certain types of cancer, respectively, faced opposition from contemporary researchers who would not accept their findings. By following the research trajectories of the two virus groups, Sankaran takes a novel approach to the history of the development of the field of medical virology, considering both the flux in scientific concepts over time and the broader scientific landscapes or styles that shaped those ideas and practices.
Author: Madeline Drexler
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Aidan Coffey
Publisher:
ISBN: 9781913652524
Category : Bacteriology
Languages : en
Pages : 703
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Book Description
Author: Stephen T. Abedon
Publisher: Cambridge University Press
ISBN: 1139471945
Category : Science
Languages : en
Pages : 457
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Book Description
Bacteriophages, or phages, are viruses that infect bacteria and are believed to be the most abundant and genetically diverse organisms on Earth. As such, their ecology is vast both in quantitative and qualitative terms. Their abundance makes an understanding of phage ecology increasingly relevant to bacterial ecosystem ecology, bacterial genomics and bacterial pathology. Abedon provides the first text on phage ecology for almost 20 years. Written by leading experts, synthesizing the three key approaches to studying phage ecology, namely studying them in natural environments (in situ), experimentally in the lab, or theoretically using mathematical or computer models. With strong emphasis on microbial population biology and distilling cutting-edge research into basic principles, this book will complement other currently available volumes. It will therefore serve as an essential resource for graduate students and researchers, particularly those with an interest in phage ecology and evolutionary biology.
Author: F. Pacheco-Torgal
Publisher: Woodhead Publishing
ISBN: 0323852211
Category : Technology & Engineering
Languages : en
Pages : 350
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Book Description
Viruses, Bacteria and Fungi in the Built Environment: Designing Healthy Indoor Environments opens with a brief introduction to viruses, bacteria and fungi in the built environment and discusses their impact on human health. Sections discuss the microbiology of building materials, the airborne transmission of viruses and bacteria in the built environment, and plumbing-associated microbiome. As the first book on this important area to be written in light of the COVID-19 pandemic, this work will be a valuable reference resource for researchers, civil engineers, architects, postgraduate students, contractors and other professionals working and interested in the field of the built environment. Elements of building design, including choice of materials, ventilation and plumbing can have important implications for the microbiology of a building, and consequently, the health of the building's occupants. This important new reference work explains the microbiology of buildings and disease control in the built environment to those who design and implement new construction and renovate. - Provides an essential guide on the microbiology of buildings, covering bacteria, fungi and viruses on surfaces, in air and in water - Comprehensively examines how humidity influences fungal growth in several building materials - Includes important information about the airborne transmission of infectious agents - Addresses ventilation design to improve human health - Presents the first book on disease control in buildings since the COVID-19 pandemic
Author: Louise Eaton
Publisher: Encyclopaedia Britannica
ISBN: 1538300044
Category : Juvenile Nonfiction
Languages : en
Pages : 221
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Book Description
Bacteria and viruses are among the oldest agents on Earth and reveal much about the planet's past and evolution. As scientists and doctors make progress in fighting the harmful effects of bacteria and viruses, they also often make discoveries that can lead to life-saving vaccines and antibiotics, making the fields of microbiology and biochemistry more intriguing and challenging than ever. In this volume, readers will venture into the realm of bacteria and viruses to explore these constantly changing agents and the roles they play in nature, medicine, and disease.
Author: Kim A. Brogden
Publisher:
ISBN:
Category : Bacteria
Languages : en
Pages : 460
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Book Description
Polymicrobial diseases, those involving more than one etiologic agent, are more common than is generally realized and include respiratory diseases, gastroenteritis, conjunctivitis, keratitis, hepatitis, periodontal diseases, multiple sclerosis, genital infections, intra -- abdominal infections, and pertussis.
Author:
Publisher:
ISBN: 9780815332183
Category : Cells
Languages : en
Pages : 0
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Book Description
Author: Centers for Disease Control and Prevention CDC
Publisher: Oxford University Press
ISBN: 0190628634
Category : Medical
Languages : en
Pages : 705
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Book Description
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.
