Since Paiutes were frequently living near the settlements, they soon contracted these diseases but had less acquired immunity to them.
Frog populations may eventually be able to acquire immunity, as wild relatively healthy adults have been found with the fungus on their skin.
By this settlement, Liggett appears to have acquired immunity.
They could spread it so freely that every member of their group acquired immunity during infancy.
People can acquire natural immunity to malaria, so making an antimalaria vaccine should be possible.
The extent and duration of exposure necessary to acquire immunity has not been determined; it may vary with each individual organism.
She had failed to acquire immunity, but she had learned to fake it.
If it gets into your veins you must acquire immunity from a vampire's blood to survive.
"Imagine how history might have been changed had he not acquired immunity here."
It was also possible, he said, that adults had acquired immunity from the disease.