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Topic: Varicella-zoster virus


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 Varicella zoster virus - Wikipedia, the free encyclopedia
The varicella-zoster virus (VZV), also known as human herpes virus 3 (HHV-3), is one of the eight herpes viruses known to affect humans (and other vertebrates).
It was developed by Merck, Sharp and Dohme in the 1980s from the Oka strain virus isolated and attenuated by Michiaki Takahashi and colleagues in the 1970s.
VZV is closely related to the herpes simplex viruses (HSV), sharing much genome homology.
en.wikipedia.org /wiki/Varicella-zoster_virus   (316 words)

  
 Varicella-Zoster Virus, Chicken Pox, Shingles Virus
VZV IgM is produced in primary varicella and herpes zoster and thus it is not possible to distinguish between the two.
Varicella is one of the typical viral rash illnesses of childhood.
The risk of a child acquiring varicella is dependent on the rapidity with which the mother develops and transfers humoral immunity across the placenta and that depends on the time interval between the date of onset of the rash in the mother and the date of delivery.
virology-online.com /viruses/VZV.htm   (5415 words)

  
 Varicella-Zoster Virus
Varicella virus vaccine should not be administered to persons who have a history of anaphylactic reaction to any component of the vaccine, including gelatin and neomycin.
In one study, varicella virus vaccine infection occurred in 15 (17%) of 88 exposed, healthy siblings of leukemic vaccine recipients; mild rash developed in 11 siblings.
Varicella virus vaccine is not licensed for use in persons who have any malignant condition.
www.medhelp.org /NIHlib/GF-619.html   (2763 words)

  
 Varicella Zoster Virus Diseases
Varicella zoster virus causes both chickenpox and shingles, but the two diseases are distinguished by the highly contagious nature of chickenpox.
Varicella is one of the most communicable infectious diseases and has a secondary attack rate among exposed susceptible household contacts as high as 90%.
Varicella may be transmitted for 1 to 2 days prior to the onset of rash and up to 5 days after rash onset, or until all lesions are crusted over.
edcp.org /guidelines/varicella.html   (1744 words)

  
 NIP: Diseases/Varicella/main page
Chapter 12 Summary: Varicella is an acute, contagious disease caused by varicella zoster virus (VZV).
Clinical observations of the relationship between varicella and herpes zoster were made in 1888 by von Bokay, when...
The Varicella Surveillance Worksheet (.pdf) and a Varicella Death Investigation Worksheet (.pdf) were developed for states to use for reporting cases and deaths related to varicella.
www.cdc.gov /nip/diseases/varicella   (227 words)

  
 VZV Foundation - A Decade Of Leadership In The Fight Against VZV Infections
The VZV Research Foundation is the world’s only nonprofit organization solely dedicated to the fight against the varicella-zoster virus (VZV) and VZV infections (chickenpox, shingles and post-herpetic neuralgia) through research and education.
It is caused by a reactivation of the varicella-zoster virus, the same virus that causes chickenpox.
A five-year, active surveillance study of varicella incidence and hospitalization conducted between 1995 and 1999 at three sites by the CDC reported an 80 percent reduction in varicella incidence, with the greatest decline among children one-to-four years of age.
www.vzvfoundation.org /faq.html   (2643 words)

  
 Varicella Zoster Virus
The virus travels down the axon and re-infects the dematome supplied by the sensory ganglian to produce painful vesicles on the skin.
Infants born to mothers who have varicella in early pregnancy may develope a syndrome associated with; limb hypoplasia, muscular atrophy, mental retardation and skin scarring.
The virus grows slowly with the production of typical cytopathic effect usually evident in seven to ten days.
web.uct.ac.za /depts/mmi/jmoodie/vzv2.html   (394 words)

  
 Varicella-Zoster Virus
The varicella-zoster virus (VZV), which causes chicken pox and shingles, may cause life threatening pneumonia particularly in pregnant women and immune-compromised patients.
VZV may invade the lungs and cause diffuse pneumonia, ranging in severity from mild respiratory symptoms to fulminant, life-threatening disease.
The mainstay of treatment for VZV respiratory infection is acyclovir, which has been shown to lessen the duration and severity of symptoms in this disease.
brighamrad.harvard.edu /Cases/bwh/hcache/73/full.html   (271 words)

  
 Shingles and Chickenpox (Varicella-Zoster Virus)
The major long-term complication of varicella is the later reactivation of the herpes zoster virus and the development of shingles, which occurs in about 20% of people who have had chickenpox.
The pain and discomfort of the active herpes zoster infection is the primary symptom and complication of herpes zoster.
Since a varicella vaccine became available in the US in 1995, however, the incidence of disease and hospitalizations due to chickenpox are showing a dramatic decrease of over 80% in some states.
www.morehead.org /wellconnected/000082.htm   (9212 words)

  
 Virus Culture, Rapid, Varicella-Zoster Virus (VZV)
Varicella-zoster virus is a single virus which causes two diseases: chickenpox (varicella) in children and, after reactivation from latency, shingles (zoster) in adults.
If a virus other than the one specified for this virus-specific culture is recovered, identification will be made, and an additional charge will apply.
Cell culture of VZV often has been reported to be less sensitive than direct antigen detection of VZV by immunofluorescence.
www.labcorp.com /datasets/labcorp/html/chapter/mono/mb027000.htm   (480 words)

  
 eMedicine - Varicella Zoster : Article by Wayne E Anderson, DO
Although the frequency of varicella zoster is expected to decrease as the vaccinated children grow to adulthood, the present frequency of varicella zoster in adults may be increasing.
The varicella vaccine may stimulate immunity in seropositive adults, suggesting that the vaccine may constitute treatment and perhaps prevention of zoster (even with previous exposure to chickenpox).
The frequency of multiple, disseminated, and visceral zoster is increased in the immunocompromised population.
www.emedicine.com /neuro/topic390.htm   (3561 words)

  
 Amazon.com: Varicella-Zoster Virus: Virology and Clinical Management: Books: Ann M. Arvin,Anne A. Gershon
Published in association with the VZV Research Foundation, this text is a comprehensive account of the biology and clinical features of the varicella-zoster virus.
This comprehensive account of the biology and clinical features of the varicella-zoster virus, published in association with the VZV Research Foundation, surveys current knowledge of the molecular biology, pathogenesis, and clinical features of VZV as the causative agent of chickenpox and zoster (shingles).
The development of our knowledge of the ubiquitous varicella-zoster virus has been fascinating, illustrating as it does the interplay of different scientific disciplines and the changing nature of the human host.
www.amazon.com /exec/obidos/tg/detail/-/0521660246?v=glance   (731 words)

  
 Facts About Shingles (Varicella-Zoster Virus), NIAID Fact Sheet
Shingles is a disease caused by the varicella-zoster virus, the same virus that causes chickenpox.
Another complication of the virus is postherpetic neuralgia (PHN), a condition where the pain from shingles persists for months, sometimes years, after the shingles rash has healed.
The study found that zoster vaccine markedly reduced illness from herpes zoster and PHN among older adults.
www.niaid.nih.gov /factsheets/shinglesFS.htm   (576 words)

  
 MedlinePlus Medical Encyclopedia: Chickenpox
The virus that causes chickenpox is varicella-zoster, a member of the herpesvirus family.
The same virus also causes herpes zoster (shingles) in adults.
Once you catch chickenpox, the virus usually remains in your body for your lifetime, kept in check by the immune system.
www.nlm.nih.gov /medlineplus/ency/article/001592.htm   (1244 words)

  
 Chickenpox - MayoClinic.com
This red, itchy rash is caused by the varicella-zoster virus, which is part of a group of viruses called herpes viruses.
Before the chickenpox vaccine became part of the regular childhood immunization schedule, the virus caused about 11,000 hospitalizations and 100 deaths in the United States each year.
But the disease can be serious, even in healthy children.
www.mayoclinic.com /health/chickenpox/DS00053   (324 words)

  
 Varicella-Zoster virus infection
Varicella-Zoster Virus Infection (VZV Infection, VZV Infection, Shingles, Zoster)
Video for healthcare professionals covers how to collect specimens, where to send them, and more.
General-level and clinical level information on all aspects of the disease and vaccine.
www.cdc.gov /ncidod/diseases/list_varicl.htm   (46 words)

  
 Varicella
Varicella virus (VZV) was isolated from vesicular fluid of both chickenpox and zoster lesions in cell culture by Weller in 1954.
Herpes zoster is a reactivation of latent varicella infection.
The incidence of zoster after immunization with live attenuated varicella vaccine.
wonder.cdc.gov /wonder/prevguid/p0000108/p0000108.asp   (4555 words)

  
 Shingles (a skin rash virus) - information from MedicineNet.com
The virus responsible for these conditions is called Varicella zoster.
The herpes virus that causes shingles and chicken pox is not the same as the herpes virus that causes genital herpes (which can be sexually transmitted) and herpes mouth sores.
Shingles is a skin rash caused by the same virus that causes chickenpox.
www.medicinenet.com /shingles/article.htm   (402 words)

  
 Varicella (Chickenpox). DermNet NZ
It may be stimulated to reappear later as shingles, or herpes zoster infection.
Although widespread chickenpox does not recur, the varicella virus remains in selected anterior horn cells of the spinal cord long term.
Exposure to varicella virus may cause severe problems in pregnant women whom have not had chickenpox before.
dermnetnz.org /viral/varicella.html   (867 words)

  
 Varicella
Primary infection with varicella zoster virus causes chickenpox in childhood and, after remaining latent in the dorsal root ganglia, can reactivate in the elderly, clinically manifesting as herpes zoster.
A live attenuated varicella virus (Oka strain) vaccine (VARIVAX) was licensed in 1995 in the United States and is manufactured by Merck and Co., Inc.
Varicella in Pregnancy and the Foetal Varicella Syndrome
www.edae.gr /varicella.html   (748 words)

  
 eMedicine - Varicella : Article by Parang N Mehta, MD
Varicella's cause, the varicella-zoster virus, is a member of the human herpesvirus subfamily Alphaherpesvirinae and, as is true of all herpes viruses, is a deoxyribonucleic acid (DNA) virus.
Among the health benefits of routine varicella immunization in childhood may be a lifelong decreased risk for reactivation of the virus as shingles.
The CSF of patients with varicella encephalitis may have few or as many as a hundred cells that are polymorphonuclear or mononuclear, depending on the timing of the lumbar puncture.
www.emedicine.com /ped/topic2385.htm   (4020 words)

  
 Herpes zoster definition - Medical Dictionary definitions of popular medical terms
The virus responsible for these conditions is called Varicella zoster.
Herpes of the Eye- Read about herpes viruses, including the chickenpox virus and herpes virus in the eyes.
Herpes zoster: Also called shingles, zona, and zoster.
www.medterms.com /script/main/art.asp?articlekey=3734   (248 words)

  
 Herpes zoster - Wikipedia, the free encyclopedia
Herpes zoster, colloquially known as shingles, is the reactivation of varicella zoster virus, leading to a crop of painful blisters over the area of a dermatome.
In Massachusetts, herpes zoster incidence increased 90%, from 2.77/1000 to 5.25/1000 in the period of increasing varicella vaccination 1999-2003 (Yih et al.
The pain characteristic of herpes zoster is thought to be due to irritation of the sensory nerve fibers in which the virus reproduces.
en.wikipedia.org /wiki/Shingles   (1174 words)

  
 Shingles Information Page: National Institute of Neurological Disorders and Stroke (NINDS)
Shingles (herpes zoster) are an outbreak of rash or blisters on the skin that is caused by the same virus that causes chicken pox - the varicella-zoster virus.
VZV Research Foundation [For Research on Varicella Zoster]
In April 2005 the Food and Drug Administration received a license application from the manufacturer for the zoster vaccine.
www.ninds.nih.gov /disorders/shingles/shingles.htm   (605 words)

  
 Shingles (herpes zoster). DermNet NZ
Shingles is a painful blistering rash caused by reactivation of varicella, the chickenpox virus.
The virus remains in a resting phase in these nerve cells for years before it is reactivated and grows down the nerves to the skin to produce shingles (zoster).
During this widespread infection, which usually occurs in childhood, virus is seeded to nerve cells in the spinal cord, usually of nerves that supply sensation to the skin.
www.dermnetnz.org /viral/herpes-zoster.html   (885 words)

  
 Vaccines, Immunization and Biologicals
The duration of protection against varicella and zoster without natural exposure to the virus, the epidemiological impact of childhood vaccination at various levels of coverage, and the zoster-preventive effect of vaccination of adults and elderly people with a history of varicella need to be better understood.
Varicella vaccine may be used either at an individual level to protect susceptible adolescents and adults, or at a population level, to cover all children as part of a national immunization programme.
Varicella vaccines based on the attenuated Oka-strain of VZV have been marketed since 1974, and the positive results of extensive safety, efficacy and cost- effectiveness analyses have warranted the introduction of these vaccines into the childhood immunization programmes of several industrialised countries.
www.who.int /vaccines-diseases/diseases/PP_Varicella.shtml   (3559 words)

  
 NIP: Diseases/Varicella/main page
Chapter 12 Summary: Varicella is an acute, contagious disease caused by varicella zoster virus (VZV).
Clinical observations of the relationship between varicella and herpes zoster were made in 1888 by von Bokay, when...
The Varicella Surveillance Worksheet (.pdf) and a Varicella Death Investigation Worksheet (.pdf) were developed for states to use for reporting cases and deaths related to varicella.
www.cdc.gov /nip/diseases/varicella   (227 words)

  
 Clinical Trial: Tai Chi Chih and Varicella Zoster Immunity
The investigators have observed that Varicella Zoster Immunity is always decreased in individuals with major depression.
Both the incidence and severity of Herpes Zoster (HZ) or "Shingles" increase markedly with increasing age, is a painful condition, due to a decline in Varicella Zoster Virus (VZV) specific immunity.
A randomized control trial testing whether a relaxation response based intervention, Tai Chi Chih, will affect Varicella Zoster Virus (VZV) specific immunity measures of psychological adaptation and health function in the older adult.
clinicaltrials.gov /show/NCT00029484   (416 words)

  
 Chickenpox
Varicella is the initial manifestation of varicella-zoster virus (VZV)
varicella in a child whose brother developed zoster after immunization with
Group A streptococcal necrotizing fasciitis complicating primary varicella: a series of fourteen patients.
www.whale.to /vaccines/varicella4.html   (259 words)

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