Hints From Heloise: Robust flu vaccine is available

Readers are advised that there’s a high-dose flu vaccine that’s now available in the U.S. People 65 and older may have weaker immune systems than younger people. That’s why, if you’re a senior, your doctor may recommend this more robust flu vaccine. It is generally considered safe, but the side effects of the injection may be a bit stronger than the regular flu shot: temporary pain, headache and muscle ache, among other things.