Unprotected by hereditary or acquired immunity, he contracted tuberculosis and faded away before our eyes.
He demonstrated that “there is but one permanent element in natural or acquired immunity, and that is phagocytosis.”
As both native and imported horses are equally susceptible, there is no indication of an acquired immunity to be observed.
Sometimes he had been ill but he had acquired immunity to certain poisonous plants that contained food values.
In other words, it has acquired immunity against this particular germ and its toxin.
He has acquired immunity to many infections by having experienced them.
acquired immunity n.
Immunity obtained either from the development of antibodies in response to exposure to an antigen, as from vaccination or an attack of an infectious disease, or from the transmission of antibodies, as from mother to fetus through the placenta or the injection of antiserum.
|acquired immunity |
Immunity that is not inherited. Acquired immunity can be active or passive. ◇ Active immunity results from the development of antibodies in response to an antigen, as from exposure to an infectious disease or through vaccination. ◇ Passive immunity results from the transmission of antibodies, as from mother to fetus through the placenta or by the injection of antiserum.