noun
definition
Chickenpox
definition
Any of various other eruptive diseases, such as swinepox, hives and varioloid.
Examples of varicella in a Sentence
Early treatment with IV acyclovir is recommended for infants in this exposure category who develop varicella despite VZIG prophylaxis.
In the immunocompromised however, this viraemia may be prolonged or severe producing disseminated varicella which looks the same as primary chickenpox.
Infection from one week before to one week after delivery can lead to severe neonatal varicella.
In rare cases, an unborn child exposed to varicella zoster can be damaged or may be miscarried.
However, sometimes a test to identify the varicella virus is carried out.
At present, live attenuated varicella vaccine is not licensed for use in the UK.
Reye 's syndrome has been reported in children treated with aspirin during natural varicella infection.
Research is needed on the long-term follow-up of infants who have developed fetal varicella syndrome.
Some universities and schools may ask for varicella immunization.
Passive immunization should be carried out using Varicella zoster immunoglobulin (VZIG) in non-immune patients if exposed to chickenpox or shingles.
Prevention Chickenpox is now a vaccine preventable disease with the advent of a live attenuated varicella zoster virus vaccine.
A positive smear cannot distinguish between varicella zoster virus and HSV-1, and a negative smear does not rule out HSV infection.
Herpes virus-A family of viruses including herpes simplex types 1 and 2, and herpes zoster (also called varicella zoster).
Herpesvirus-A family of viruses including herpes simplex types 1 and 2, and herpes zoster (also called varicella zoster).
Chickenpox (also called varicella) is a common, extremely infectious, rash-producing childhood disease that also affects adults on occasion.
Prior to the use of the varicella vaccine, chickenpox was a typical part of growing up for most children in the industrialized world.
Before the varicella vaccine (Varivax) was released for use in 1995, nearly all of the 4 million children born each year in the United States contracted chickenpox, resulting in hospitalization in five of every 1,000 cases and 100 deaths.
A study published in 2001 indicates that the varicella vaccine is highly effective when used in clinical practice.
Varicella zoster-The virus that causes chickenpox (varicella).
Varivax-The brand name for varicella virus vaccine live, an immunizing agent used to prevent infection by the Herpes (Varicella) zoster virus.
Chickenpox vaccine or varicella zoster vaccine (VZV) is an injection that protects children from contracting chickenpox (varicella), one of the most common childhood diseases.
The weakened virus induces a child's immune system to develop antibodies against the varicella virus without causing the disease.
A sample of the varicella zoster virus was isolated from the blood of a three-year-old Japanese boy in 1972.
This "Oka" varicella strain, named after the original infected child, was licensed by Merck in 1981 and used to develop Varivax.
However unlike other weakened viruses, varicella zoster remains in the cell rather than being secreted from the cell and collected from the culture medium.
In 2001 child-care facilities and public schools began phasing in a varicella vaccination requirement for enrollment.
Although children who have had chickenpox are immune to the disease and cannot contract it a second time, the varicella zoster virus can remain inactive in the human body.
It is not known whether the weakened virus used for VZV can remain dormant in the body, eventually causing shingles in the same way that the naturally occurring varicella virus can.
In contrast there were 68 cases of herpes zoster in healthy children under age 20, following natural infection with varicella.
A 2002 study indicated that exposure to varicella is much higher in adults living with children and that such exposure substantially boosts immunity against shingles.
Thus the varicella virus can spread very rapidly within families and among groups of children in school and daycare.
In rare instances it is possible to contract the weakened vaccine strain of varicella from a recently vaccinated child.
They have had a serious reaction to a previous varicella vaccination.
Varicella (chickenpox vaccine)-Given by injection between the ages of 12-18 months or later for children who have not had chickenpox.
Children should not be vaccinated against measles or chickenpox (varicella) for four months after being treated with RIG.