Varicella zoster virus

Varicella zoster virus (VZV) is an exclusively human virus that belongs to the α-herpes virus family. The VZV present worldwide and is highly infectious. Primary infection leads to acute varicella or “chickenpox”, usually from exposure either through direct contact with a skin lesion or through airborne spread from respiratory droplets [2, 3]. After initial infection, VZV establishes lifelong latency in cranial nerve and dorsal root ganglia, and can reactivate years to decades later as herpes zoster

Chicken Pox, or Varicella, is a viral infection caused by the Varicella Zoster Virus (VZV). The virus remains within the individual and in one third of cases will reactivate causing Shingles or Herpes Zoster (HZ). VZV only infects humans and is “a double stranded DNA of the herpesvirus group.” (Leung 343). VZV has been in existence for centuries, yet it wasn’t until the late 19th century that it was more closely examined. First, the observation was made that Varicella was not a mild form of smallpox

Epidemiology: Chickenpox The Varicella-Zoster virus causes a very infectious disease called Chickenpox. Chickenpox is usually acquired through the inhalation of airborne respiratory droplets from an infected host. Chickenpox is primarily acquired during childhood , with more than 90% of all reported cases occurring in children under the age of 10. A person with chickenpox can spread the virus without even showing any signs or symptoms. It is usually most easily transmitted two to three days before

torso, although Shingles can be found anywhere on the body. Varicella-zoster virus, the same virus that causes chickenpox and occurs with Shingles, stays dormant in the spinal cord, not certain if the disease will activate. Depending on the status of your health due to Shingles, the signs, symptoms, treatments, and risk factors all play a major role on a certain individual. Causes: The clear cause of Shingles is the virus varicella-zoster, also being the

In most cases, a varicella zoster infection will lead to a case of chicken pox in children and in adults who are susceptible to the disease and not vaccinated but if a woman is infected during the early stages of pregnancy the fetus could be born with birth defects. Congenital Varicella Syndrome (CVS) is a rare but serious disease that affects about 2% of pregnancies exposed to the virus in the first trimester. The disease leads to low birth weight, skin and/or extremity abnormalities, and in very

herpesvirus-3 (HHV-3) Disease: Varicella (chicken pox) and Herpes Zoster (shingles) Classification of the causative agent: Varicella Zoster virus is a member of the Herpesviridae family, sub classified as an alpha- herpesvirinae based on its DNA sequencing and genome arrangement. It has a herpesvirus virion structure with an inner DNA core, a capsid, a tegument (layer of proteins), and an outer envelope. Microscopic visualization of the varicella-zoster virus Photo credit: https://www.videoblocks

Introduction Shingles is a very painful and often a very harmful condition. This virus is generated by the same virus (herpes zoster) none as chickenpox’s. After one gets chickenpox, the virus can lie inactive in the sensory nerves for at least 20 years. It reappears when the disease fighting system is weakened by age, disease or unmanaged stress. When events happen that decrease the disease fighting system, such as getting older, extreme emotional stress, extreme illness, or long-term usage of drugs

called varicella, is a contagious illness that causes red spots that itch and some blister all over the body. We are going to take a closer look into how this is passed, the signs and symptoms, and who it effects the most. Most children receive the vaccination for Chicken pox at an early age. Adults can receive the vaccination as well, and the chicken pox vaccination requires to separate doses of the vaccine. Chicken pox is highly contagious to people who have yet to be exposed to the virus. Chicken

Chickenpox is a disease that is predominantly seen amongst children. This disease is highly contagious and widespread. This is why it is important to quarantine a person with chickenpox right away in a sense. It is important that a person is not near someone with chickenpox. Any kind of direct contact with a person that has never contracted chickenpox will immediately make the person susceptible to getting chickenpox right away. Chicken pox is a disease of the skin that makes the person get

2014 Chickenpox is disease caused by the virus varicella-zoster. It is most common in children under the age of fifteen but still possible for older children and adults to obtain. Chickenpox appears as an itchy red rash all over the body, the rash can turn into fluid filled blisters other symptoms include, fevers, headaches, tiredness, and loss of appetite. Chickenpox is very contagious and can be spread even when there are no symptoms. Varicella incubation period is fourteen to sixteen days