The following points highlight the six main stages involved in the replication of animal viruses. The stages are: 1. Adsorption 2. Penetration 3. Un-Coating 4. Replication of Viral Genome 5. Synthesis and Assembly of Virus Capsids 6. Release of New Virus. Stage # 1. Adsorption: Adsorption to the host cell surface is the first step in reproduction cycle of animal [...]
In this article we will discuss about:- 1. Meaning of Poliovirus 2. Morphology of Poliovirus 3. Replication 4. Cultivation. Meaning of Poliovirus: Poliovirus is a member of the enterovirus subgroup, family Picornaviridae. Picornaviruses are small, ether- insensitive viruses with an RNA genome. There are three poliovirus serotypes: serotype 1, 2, and 3. Serotype 1 is the common epidemic type, serotype [...]
In this article we will discuss about:- 1. Meaning of Retroviruses 2. Structural Organization of Retroviruses 3. Genomic Organization 4. Replication. Meaning of Retroviruses: Retrovirus is a virus containing RNA genome that replicates through a DNA intermediate. The term "retro" means "backward" and the name "retrovirus" is derived from the fact that these viruses transfer information backward from RNA to [...]