Herpesviridae family viruses

2021-08-17 09:56 PM

Recently new viruses of this family have been described as Human Herpesvirus 6 causing fever, lymphadenopathy, and rash in children, Human herpesvirus 7 the pathogenic role of this virus is being investigated

General perception

Herpes includes many viruses that cause disease in humans, they cause acute infections after which many viruses can survive in the body's tissues and cause many relapses. Herpes virus infections commonly occur in immunocompromised patients. Many antiviral drugs are now very effective for treating infections caused by several viruses in this family. Viruses of the Herpesviridae family have the following properties:

The nucleocapsid core has a polyhedral cubic structure.

Inside the nucleocapsid is double-stranded DNA.

The outermost shell is a lipid, so the adult virus particle is about 150-200 nm in size. Members of the herpes virus include:

Under the family alphaherpesvirinae(subfamily)

Science name

Common names

Abbreviations

Human Herpesvirus q

Herpes simplex virus  typ 1

HSV-1

Human Herpesvirus 2

Herpes simplex virus  typ 2

HSV-2

Human Herpesvirus 3

Varicella zoster virus

VZV

These viruses share some common biological properties such as short growth cycles, they cause infectious cell lysis and latent infection in nerve cells.

Under the family Betaherpesvirinae

Science name

Common names

Abbreviations

Human Herpesvirus 5

Cytomegalovirus

CMV

This virus has a long growth cycle, it causes giant cells in infectious tissues, and latent infections in salivary gland cells and kidney cells.

Under the family gammaherpesvirinae

Science name

Common names

Abbreviations

Human herpesvirus 4

Epstein Barr virus

EBV

 

The development cycle of this virus is variable, they cause cell proliferation in infectious tissues and latent infections in lymphoid tissues.

Recently new viruses of this family have been described as Human Herpesvirus 6 causing fever, lymphadenopathy, and rash in children, Human herpesvirus 7 the pathogenic role of this virus is being investigated.