about 2% of the children who are vaccinated develop a very mild case of chickenpox usually with no more than five to six blisters. it is also possible for a person who has been vaccinated for chickenpox to develop chickenpox at some later point in life. when that happens the disease is almost always milder and the recovery more rapid than for people who have not had the shots. it's important to keep in mind that up to 90% of the people who get the vaccine will not catch chickenpox
if the virus in chickenpox vaccine is live can it cause chickenpox?