Norovirus, an RNA-based virus belonging to the family Caliciviridae is an enteric pathogen that can cause significant morbidity and mortality in health medical and communities.
Viruses that infect bacteria are known as phages or bacteriophages. Twort (19l5) described a degenerative alteration in staphylococcal colonies isolated from calf lymph that was transmissible serially via application of culture filtrates from the original growth. d’Herelle (1917) observed that the filtrates of dysentery patient faeces cultures produced transmissible lysis of a dysentery bacillus broth
What are Poxviruses? Classification of Poxviruses Based on whether they infect insect or vertebrate hosts, the family Poxviridae has been divided into two subfamilies: Chordopoxvirinae and Entomopoxvirinae. The subfamily Chordopoxvirinae encompasses viruses that infect vertebrate hosts and consists of eight genera, at least four of which cause human illness. These are the categories: The genera
The One Step Growth Curve was first described by Max Delbriick and Emory Ellis in 1939 and started modern bacteriophage research.
Viral replication is the process of forming of biological viruses in the course of the infection process within the host cells.
A virus has to go through the process of reproduction to generate new, infectious virions which are able to infect cells within the body and subsequent hosts.
Pathogenesis refers to the process by which infection by viruses causes illness. Thus, it is a description of the mechanism by which initial infection triggers the development of disease.
Explore the life cycle of a virus, stages of viral replication, lytic and lysogenic cycles, and how viruses multiply in bacterial, animal and plant cells.
Baltimore classification groups viruses into seven classes. Explore its scientific basis, genome types, mRNA synthesis, examples and classification chart.
Learn about viroids, their definition, structure, characteristics, classification, replication, transmission, plant diseases and differences from viruses.
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Pathogenicity is the capacity of a microorganism to cause disease in a host. Virulence refers to the intensity or degree of pathogenicity. The virulence varies among different microorganisms and also among strains of same species. Virulence factors are the structures, substances or properties which help a pathogen to cause infection. These factors help the microorganism
