Seniors with rheumatoid arthritis more vulnerable to infection

Seniors with rheumatoid arthritis are at high risk of serious infections that could be overlooked, Canadian doctors say. 6:59 PM ET

Shingles vaccine effectiveness varies with age

A shingles vaccine advertising campaign promotes shots to prevent an itchy, blistering rash and persistent pain in seniors, but it may not present the full picture. 10:24 PM ET video

Watch Shingles vaccine's efficacy 2:21

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