Virology history.pdf
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This document outlines the key topics in virology including the nature of viruses, viral taxonomy, replication, pathogenesis, genetics, infection mechanisms, diagnosis, and vaccination. It then summarizes the early history and discoveries in virology, from the first vaccines developed by Pasteur and Jenner, to Ivanovsky's 1892 experiment showing that the infectious agent causing tobacco mosaic disease was able to pass through filters that trapped bacteria. Beijerinck coined the term "virus" and discovery of bacteriophages by Twort and d'Herelle further advanced the field. Rivers later defined viruses as obligate parasites in 1926.
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Natural birth techniques are various type such as/ water birth , alexender method, hypnosis, bradley method, lamaze method etcবাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
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আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
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বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
A Survey of Techniques for Maximizing LLM Performance.pptx
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South African Journal of Science: Writing with integrity workshop (2024)
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Physiology and chemistry of skin and pigmentation, hairs, scalp, lips and nail, Cleansing cream, Lotions, Face powders, Face packs, Lipsticks, Bath products, soaps and baby product,
Preparation and standardization of the following : Tonic, Bleaches, Dentifrices and Mouth washes & Tooth Pastes, Cosmetics for Nails.
Assessment and Planning in Educational technology.pptx
In an education system, it is understood that assessment is only for the students, but on the other hand, the Assessment of teachers is also an important aspect of the education system that ensures teachers are providing high-quality instruction to students. The assessment process can be used to provide feedback and support for professional development, to inform decisions about teacher retention or promotion, or to evaluate teacher effectiveness for accountability purposes.
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Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
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at Integral University, Lucknow, 06.06.2024
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Azure Interview Questions and Answers PDF By ScholarHat
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Natural birth techniques - Mrs.Akanksha Trivedi Rama University
Natural birth techniques - Mrs.Akanksha Trivedi Rama University
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
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A Survey of Techniques for Maximizing LLM Performance.pptx
A Survey of Techniques for Maximizing LLM Performance.pptx
South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)
Assessment and Planning in Educational technology.pptx
Assessment and Planning in Educational technology.pptx
Film vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movie
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Virology history.pdf
- 2. Topics • Nature of virus as etiological agent • Viral Taxonomy • Viral replication • Pathogenesis of viral disease • Viral genetics • Mechanism of infection • Lab diagnosis of viral diseases • Vaccination against viral diseases
- 3. Although Louis Pasteur and Edward Jenner developed the first vaccines to protect against viral infections, they did not know that viruses existed.
- 4. The first evidence of the existence of viruses came from experiments with filters that had pores small enough to retain bacteria. In 1892 , Dmitri Ivanovsky used one of these filters to show that sap from a diseased tobacco plant
- 5. The first evidence of the existence of viruses came from experiments with filters that had pores small enough to retain bacteria. In 1892, Dmitri Ivanovsky used one of these filters to show that sap from a diseased tobacco plant remained infectious to healthy tobacco plants despite having been filtered.
- 6. Martinus Beijerinck called the filtered, infectious substance a "virus" and this discovery is considered to be the beginning of virology.
- 7. The subsequent discovery and partial characterization of bacteriophages by Frede rick Twort and Félix d'Herelle further catalyzed the field, and by the early 20th century many viruses had been discovered.
- 9. In 1926, Thomas Milton Rivers defined viruses as obligate parasites. Viruses were demonstrated to be particles, rather than a fluid by Wendell Meredith Stanley, and the invention of the electron microscope in 1931 allowed their complex structures to be visualized.