GENERAL & FAMILY MEDICINE

Virus Structure

Jan 6, 2017 by in GENERAL & FAMILY MEDICINE Comments Off on Virus Structure

3.1 INTRODUCTION TO VIRUS STRUCTURE Outside their host cells, viruses survive as virus particles, also known as virions. The virion is a gene delivery system; it contains the virus genome,…

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Bacterial Viruses

Jan 6, 2017 by in GENERAL & FAMILY MEDICINE Comments Off on Bacterial Viruses

20.1 INTRODUCTION TO BACTERIAL VIRUSES (BACTERIOPHAGES) Bacterial viruses, known as bacteriophages or phages (from the Greek phagein, “to eat”), were discovered independently by Frederick Twort (1915) and Felix d’Herelle (1917)….

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Emerging Viruses

Jan 6, 2017 by in GENERAL & FAMILY MEDICINE Comments Off on Emerging Viruses

22.1 INTRODUCTION TO EMERGING VIRUSES The term “emerging virus” is used in a number of contexts: it may refer to a virus that has recently made its presence felt by…

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Retroviruses

Jan 6, 2017 by in GENERAL & FAMILY MEDICINE Comments Off on Retroviruses

17.1 INTRODUCTION TO RETROVIRUSES The retroviruses are RNA viruses that copy their genomes into DNA during their replication. Until the discovery of these viruses it had been dogma that the…

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