Rapid Antigen Tests

Rapid antigen tests are diagnostic tools used to detect specific proteins from a virus, such as SARS-CoV-2, in a sample, usually taken from a nasal swab. These tests provide results quickly, often within 15 to 30 minutes, making them useful for screening and diagnosing infections. They are less sensitive than laboratory-based PCR tests, meaning they may miss some infections, especially in individuals with low viral loads. However, they are valuable for their speed and ease of use, helping to identify infected individuals so they can take appropriate precautions to limit transmission.