Chickenpox screening: Difference between revisions
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==Screening== | ==Screening== | ||
* Laboratory tests can help confirm the diagnosis, if needed. | |||
===Antibody Testing=== | |||
* When an individual is exposed to VZV, their immune system responds by producing antibodies to the virus. Laboratory tests detect and measure the level of two classes of VZV antibodies in the blood namely IgM and IgG. | |||
====IgM==== | |||
*First antibodies to be produced in response to the infection. | |||
*Can be detected within a week or two post exposure. | |||
*The levels of IgM antibodies rises for a short period of time and then falls below detectable levels. | |||
*Post-Infection, in the future, the IgM levels rise only when the latent VZV is reactivated. | |||
====IgG==== | |||
*Produced several weeks after the initial exposure. | |||
*IgG levels rise during active infection and then the levels become stable as the VZV infection gets resolves and as the virus gets inactivated. | |||
*Provides Long-Term protection | |||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} |
Revision as of 18:21, 15 June 2017
Chickenpox Microchapters |
Diagnosis |
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Treatment |
Case Studies |
Chickenpox screening On the Web |
American Roentgen Ray Society Images of Chickenpox screening |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Michael Maddaleni, B.S.
Overview
- Screening aids in early diagnosis and treatment. Screening tests are recommended for people without current symptoms, but for those at high risk for certain diseases or conditions.
- Here, screening is done to determine whether if the person has acquired an immunity to the disease.
- Blood tests are done to measure the levels of antibodies in the blood which indicates whether the individual has developed an immunity to chickenpox from previous infection or a missed immunisation.
Screening
- Laboratory tests can help confirm the diagnosis, if needed.
Antibody Testing
- When an individual is exposed to VZV, their immune system responds by producing antibodies to the virus. Laboratory tests detect and measure the level of two classes of VZV antibodies in the blood namely IgM and IgG.
IgM
- First antibodies to be produced in response to the infection.
- Can be detected within a week or two post exposure.
- The levels of IgM antibodies rises for a short period of time and then falls below detectable levels.
- Post-Infection, in the future, the IgM levels rise only when the latent VZV is reactivated.
IgG
- Produced several weeks after the initial exposure.
- IgG levels rise during active infection and then the levels become stable as the VZV infection gets resolves and as the virus gets inactivated.
- Provides Long-Term protection