How Does MMRV Work?
is a live attenuated vaccine. This means that it contains living viruses, which have been altered in such a way as to prevent them from actually causing diseases. However, the body's immune system still responds to the viruses, providing future protection from the diseases.
In general, live vaccines provide better protection from infections compared to other types of vaccines, but can actually cause the diseases in rare cases, particularly in people who have weakened immune systems.
Is MMRV Used for Off-Label Reasons?
On occasion, your healthcare provider may recommend this product for something other than the conditions discussed in this article (this would be known as an "off-label
" use). At this time, using MMRV in individuals over age 12 would be an off-label use.