a bodily defense reaction that recognizes an invading substance (an antigen: such as a virus or fungus or bacteria or transplanted organ) and produces antibodies specific against that antigen
a bodily process occurring due to the effect of some antecedent stimulus or agent
the manner in which something is greeted
a phrase recited or sung by the congregation following a versicle by the priest or minister
a person who is immune to a particular infection
(usually followed by `to') not affected by a given influence
relating to or conferring immunity (to disease or infection)
