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

On day 10 after infection, he produced a negative rapid antigen test.

From Scientific American

Traffic is expected to rebound as restrictions relax and travellers have the option to use either a rapid antigen test or a molecular PCR test to meet pre-entry requirements for vaccinated travellers.

From Reuters

Arrivals must do a rapid antigen test within 12 hours of arrival, and report the case if they test positive.

From BBC