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The National | Feb 28, 2013 | 2:21

Shingles vaccine's efficacy

An expensive vaccine not covered by provincial health plans can treat the painful symptoms of shingles, but research shows its efficacy falls for patients over the age of 70

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The National - The National for April 18, 2014Apr 18, 2014 | 47:46The National The National for April 18, 2014 VideoClosed Captions available
The National The National for April 18, 2014 Apr 18, 2014 | 47:46Welcome to The National, the flagship nightly newscast of CBC News, hosted by Peter Mansbridge.

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