Another word for unexposed

Jefferson, however, far from America in these years and unexposed to reactionary influences, came back with undiminished fervour of democracy, and the talk he heard of praise for England, and fearful recoil before even the beginning of the revolution in France, disheartened him, and filled him with suspicion.'

Neonate mice passively immunized by suckling from mice fed transgenic potatoes had less diarrhea than neonates unexposed to the vaccine [14] .

The resist on the unexposed area of the metal mandrel is developed away to produce a matrix.

For preventative rabies immunization in an unexposed child, an inactivated-rabies vaccine is administered in three 1.0-ml. doses, with the second dose seven days after the first, and the third dose 21 or 28 days after the first.

The skin where unexposed is pinker than that of a normal North European.