There are many causes of thrombocytopenia. Your doctor may tell you that you have a form of the condition called immune thrombocytopenia (ITP), which is one of the most common causes of low platelets in people who do not have symptoms. You may hear it referred to by its old name, idiopathic thrombocytopenic purpura.
How the chickenpox vaccine works. The chickenpox vaccine is a live vaccine and contains a small amount of weakened varicella zoster virus. The vaccine causes your immune system to produce antibodies that will help protect against chickenpox. Read more about live vaccines. Read more about chickenpox vaccine side effects.
The chickenpox vaccine is recommended for all children under age 13 who have not had chickenpox. It is also recommended for all adolescents and adults who have not been vaccinated and have not had chickenpox. If you have had chickenpox, there is no need for you to get the vaccine.Since 2005, the vaccine has also been available as part of a combination vaccine called MMRV, which offers protection against measles, mumps, rubella, and varicella.f you have had chickenpox, there is no need for you to get the vaccine. Since 2005, the vaccine has also been available as part of a combination vaccine called MMRV, which offers protection against measles, mumps, rubella, and varicella.