On Mon, 12 Jan 2015 07:56:40 -1000, dsi1
> wrote:

> My wife is getting a series of shots for hepatitis B. She had been
> vaccinated 20 or so years ago. People were told back then that they
> would be protected for life but when she and he co-workers were tested
> they had zero antibodies. It was a very unexpected thing. Workers in the
> medical field may want to have their titers checked.

Whoa! That's good to know.

--
A kitchen without a cook is just a room