Having survived the yellow fever infection, young Lyster had a lifelong immunity to the disease.

Catching "wild" chickenpox as a child has been thought to commonly result in lifelong immunity.

Assuming the patient survived - one in 100 didn't - he'd have lifelong immunity.

Infection with one serotype is thought to produce lifelong immunity to that type, but only short term protection against the other three.

For instance, some vaccines give a person lifelong immunity against a disease and only have to be given one time.

Those born before 1957 are likely to have been infected or exposed, which provides lifelong immunity.

After that, you have lifelong immunity to the virus and can't get the disease again.

Following infection, a person will have lifelong immunity to the virus.

Vaccines that produce lifelong immunity can prevent some viral infections.

The disease confers a lifelong immunity so that no one gets it twice.