antigen

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The F protein is an antigen, the part of a pathogen that the immune system recognizes as a threat and makes antibodies against.

From Scientific American

These tests are generally more sensitive than antigen tests, and at-home molecular tests have been more expensive than rapid antigen tests.

From New York Times

“The FDA is highlighting the continued need for repeat, or serial, testing when people get a negative result with an at-home COVID-19 antigen test, including recommending additional testing over a longer period of time.”

From Los Angeles Times

She tested negative on an antigen test, but a more sensitive PCR detected the virus.

From Washington Times

“She tested negative again on a rapid antigen test, but a P.C.R. test came back positive. The first lady is double vaccinated, twice boosted and only experiencing mild symptoms.”

From New York Times