Antigéntesztek

Antigéntesztek, often referred to as antigen tests, are a type of diagnostic test used to detect the presence of specific antigens, which are molecules that can trigger an immune response. These tests are commonly employed in medical settings to identify infections caused by viruses, bacteria, or other pathogens. The principle behind antigen testing involves using antibodies that are designed to bind to specific antigens. When a sample containing the target antigen is introduced to the test, the antibodies will bind to it, leading to a detectable signal. This signal can manifest in various ways, such as a color change on a test strip or a fluorescent signal, depending on the specific technology used. Antigen tests are known for their speed, often providing results within minutes to hours, making them valuable for rapid screening and diagnosis. However, they are generally considered less sensitive than other diagnostic methods like PCR (polymerase chain reaction) tests, meaning they may be more prone to false-negative results, especially in individuals with low levels of the antigen. Despite this limitation, their accessibility and quick turnaround time make them a useful tool in various public health scenarios, including widespread testing during outbreaks. Proper interpretation of antigen test results should always consider the clinical context and potentially be confirmed with more sensitive methods if necessary.