Shingles, also known as herpes zoster, is caused by a re-activation of chicken pox. So anyone who’s had that childhood disease is in danger of contracting the virus again, but this time with a vengeance. The chicken pox virus can lay dormant for years, but typically returns in people 50 and older. More than 130,000 Canadians are diagnosed with shingles each year and the majority of them are seniors. Dr. Pargat Singh Bhurji talks with Harjinder Thind about this issue among a few others.