Patients suffering from cancer and those treated with chemotherapy may be at 40 per cent increased risk of developing shingles, compared with those not having cancer, finds a new study.
Shingles (herpes zoster) - marked by painful rashes and skin blisters - is caused by the varicella zoster virus that causes chickenpox.
The virus remains dormant in the body but causes shingles if it reactivates later in life.