Herpes Virus - Morphology, Resistance, Classification | Virology Notes

HERPES VIRUS – MORPHOLOGY, RESISTANCE, CLASSIFICATION & DESCRIPTION OF VARIOUS HERPES VIRUSES

INTRODUCTION TO HERPES VIRUS

⇒ HERPES VIRUS is the family of viruses, contains hundreds of viruses, maximum of which infects humans.

They are characterized by their ability to establish latent infections, enabling the virus to persist indefinitely within the hosts and to undergo periodic reactivation.

MORPHOLOGY OF HERPES VIRUS

Herpes virus is spherical & enveloped virus containing icosahedral capsid.

The capsid is composed of 162 capsomers & envelope carries surface glycoprotein spikes.

Size: 100-200 nm in diameter.

Genetic Material:- Linear dsDNA.

RESISTANCE SHOWN BY HERPES VIRUS

Herpes viruses are susceptible to fat solvents like Alcohol, Ether, Chloroform and Bile Salts.

They are heat labile and must be stored at -70°C

CLASSIFICATION OF HERPES VIRUS

There are about Eight different types of Herpes viruses known whose primary hosts are humans. They have been officially designated ‘Human Herpes virus types 1-8’ but their common names continue to be in general use, except for 6 & 7. These viruses are as follows: –

OFFICIAL NAMECommon Name
Human Herpes virus type 1 Herpes Simplex virus type 1
Human Herpes virus type 2Herpes Simplex virus type 2
Human Herpes virus type 3Varicella – Zoster virus
Human Herpes virus type 4Epstein – Barr virus
Human Herpes virus type 5Cytomegalovirus
Human Herpes virus type 6
Human Herpes virus type 7
Human Herpes virus type 8Kaposi’s Sarcoma-Associated Herpes virus

Click below to learn more….

HERPES SIMPLEX VIRUS - HSV - HSV1 - HSV2

HERPES SIMPLEX VIRUS (HSV) – PATHOGENESIS, CLINICAL FEATURES, LABORATORY DIAGNOSIS & TREATMENT

INTRODUCTION TO HERPES SIMPLEX VIRUS (HSV) Herpes Simplex Virus causes the most common viral infection in human and worldwide in distribution. The herpes simplex virus is of two types – HSV type 1 (human herpesvirus type 1 or HHV type 1) HSV type 2 (human herpesvirus type 2 or HHV ...
Continue Reading.....
VARICELLA-ZOSTER VIRUS - CHICKENPOX - SHINGLES - HERPES ZOSTER

VARICELLA – ZOSTER VIRUS (VZV) – INTRODUCTION, INFECTIONS, PATHOGENESIS, CLINICAL FEATURES, TREATMENT & PROPHYLAXIS

INTRODUCTION TO VARICELLA – ZOSTER VIRUS ⇒ In 1889, Von Bokay had suggested that Varicella (Chickenpox) and Herpes Zoster (Shingles) are caused by a single virus, for which it is named Varicella-Zoster virus (VZV). ⇒ Chickenpox is the primary infection in a non-immune individual, whereas herpes zoster is a reactivation ...
Continue Reading.....
EPSTEIN-BARR VIRUS - EBV - INFECTIOUS MONONUCLEOSIS

EPSTEIN-BARR VIRUS (EBV) – INTRODUCTION, INFECTIONS, CLINICAL FEATURES & LABORATORY DIAGNOSIS

INTRODUCTION TO EPSTEIN-BARR VIRUS (EBV) In 1964, a virus was observed in cultured lymphoma cells by Epstein, Barr & Achong, a new type of Herpesvirus, named the EB virus or Epstein-Barr Virus, specifically affecting cells of the B lymphocyte lineage. INFECTIONS CAUSED BY EPSTEIN-BARR VIRUS ⇒ The source of the ...
Continue Reading.....
CYTOMEGALOVIRUS - CMV - OWL EYE INCLUSIONS - CONGENITAL INFECTION

CYTOMEGALOVIRUS (CMV) – INFECTIONS, PATHOGENESIS, CLINICAL FEATURES, LABORATORY DIAGNOSIS, TREATMENT & PROPHYLAXIS

INTRODUCTION TO CYTOMEGALOVIRUSES Cytomegalovirus (CMV) is formerly known as salivary gland virus, are a group of Herpes viruses, characterized by enlargement of infected cells and prominent Intranuclear inclusions. INFECTIONS CAUSED BY CYTOMEGALOVIRUS ⇒ The source of the infection is usually by direct contact with body fluids, such s Saliva, Blood, ...
Continue Reading.....

SAHIL BATRA

Hi, I'm the Founder and Developer of Paramedics World, a blog truly devoted to Paramedics. I am a Medical Lab Tech, a Web Developer and Bibliophiliac. My greatest hobby is to teach and motivate other peoples to do whatever they wanna do in life.

You May Also Like