Is there a different kind of flu shot for people over 70?

Not really: Each year a flu strain(s) is determined, and this is what everyone gets. It does come in injectable or inhalable depending on what you'd like to do. Preservative and preservative free too. So ask your doctor which is best for you.

Yes (65 & older): The high dose influenza vaccine can be used for people who are 65 and older. Recent studies indicated that it was 24.2% more effective in preventing influenza in this population.