antibodies

1. Proteins in the blood that are produced by the body in response to specific antigens (such as bacteria). (See immune system.)

Example Sentences

But it is thought that young calves are particularly vulnerable when they are being weaned, and when the immune-boosting antibodies from the mother's milk decline.

Read more on BBC

In March this year, blood samples collected from the two cats showed high levels of antibodies to H5N1 — suggesting the cats had been exposed.

Read more on Los Angeles Times

Grant funding, she said, “was how we bought the antibodies we needed for experiments, how we purchased our reagents and our consumable supplies.”

Read more on Los Angeles Times

Very young babies rely on antibodies acquired during gestation and herd immunity to protect them from measles, which killed roughly 400 children every year in the U.S. before the combined MMR vaccine’s introduction in 1971.

Read more on Los Angeles Times

“Vaccinating during pregnancy is incredibly helpful, because moms can make the antibodies and transfer those antibodies across the placenta,” Singh said.

Read more on Los Angeles Times