Some vaccinated children have been found to lose their protective antibody in as little as five to eight years.

These antibodies may have a role as protective antibodies in the course of infection inside a human host.

When it is injected in the arm, the body develops the protective antibodies.

Vaccination saved lives by stimulating the immune system to create protective antibodies against disease.

And they developed powerful protective antibodies in their blood during the wars.

That's because the mother's immune system has not developed protective antibodies against the virus.

The study will investigate only the safety of the vaccine and the degree to which it stimulates protective antibodies in the recipients.

It appears that a disorder of the immune system where the body fails to make enough protective antibodies may play a role in causing asthma.

By the time they are 10 years old, 80 percent of all children have developed lifelong protective antibodies to these toxins.

The first is to learn whether the experimental vaccine can induce the production of protective antibodies in the volunteers.