The virus can then become active again later in life, when your immune system has been weakened by age, stress, illness or certain treatments that can reduce your immunity.
As with other vaccines, the shingles vaccine works by helping to reduce your risk of developing shingles. If you do get shingles, it can reduce how serious the symptoms will be.
People aged between 70 and 79 are eligible for the shingles vaccine and will be invited for this by letter. If you have not received a letter and think you should have, please get in touch.