Changes

[[Image:Viral replication.jpg|thumb|right|150px|Viral Replication - B. Catchpole, RVC 2008]]

[[Image:Viral replication.jpg|thumb|right|150px|Viral Replication - B. Catchpole, RVC 2008]]

Viruses can only replicate in host cells as they do not possess the structures or the enzymes to replicate independently. When a virus utilises the host cell for replication, the host cell can experience effects ranging from minor changes in metabolism to lysis. In most cases, a virus replication life cycle takes between six to forty hours. During initial infection the host cell undegoes a period called the "eclipse" period where it is very difficult to detect infected cells. After this period the presence of a virus can usually be demonstrated both intracellularly and extracellularly. Post-eclipse period the number of viral particles present increases exponentially.

Viruses can only replicate in host cells as they do not possess the structures or the enzymes to replicate independently. When a virus utilises the host cell for replication, the host cell can experience effects ranging from minor changes in metabolism to lysis. In most cases, a virus replication life cycle takes between six to forty hours. During initial infection the host cell undergoes a period called the "eclipse" period where it is very difficult to detect infected cells. After this period the presence of a virus can usually be demonstrated both intracellularly and extracellularly. Post-eclipse period the number of viral particles present increases exponentially.

<br />

<br />

<br />

<br />