He said most adults develop immunity within two weeks after taking the vaccine.

Birds that have been infected develop immunity to the virus.

They were never here long enough to develop immunity to the flux, I believe.

He said children who become ill with the disease could develop immunity.

For reasons related to the individual, some will not develop immunity.

Six grants will focus on ways to develop cellular immunity.

Patients cured with antibiotics early in the course of the disease do not develop immunity.

The adult may develop immunity with little or no clinical signs of disease.

"How do you develop immunity to something that kills in one shot?"

Following this, African slaves, who had developed immunity to these diseases, were quickly brought in to replace them.