immune, British vs. American usage

[sane]

Do the British and the Americans use the words "immune" and "immune system" with slightly different meanings while relating to health?


It seems to me that the British use the words to mean immunity from bacteria or foreign invaders while the Americans use it more widely to denote body's entire defense mechanism.

[Anglika]

So far as I am concerned, the immune system is the body's defense mechanism against infection; being immune is the resistance to a particular infection owing to the presence of specific antibodies or sensitized white blood cells; and immunity is the ability of an organism to resist a particular infection.