An antigen is any substance that can trigger an immune response in the body. Antigens are typically proteins or polysaccharides that are recognized as foreign or potentially harmful by the immune ...

Chimeric antigen receptor (CAR) therapies utilize engineered receptors that are able to redirect immune cells to identify and destroy cancer cells that express a specific antigen. At present, CAR-T ...

Hepatitis B is a viral infection that impacts the liver. To test for hepatitis B, a doctor can perform a blood test that detects hepatitis B surface antigens. A positive result indicates a hepatitis B ...

The need for effective adjuvant therapies and evidence that the immune system plays a prominent role in the development and progression of melanoma (Curiel-Lewandrowski & Demierre, 2000) have led to ...

Immunohistochemistry uses antibodies to test tissue samples for specific types of antigens. It can often provide very specific results regarding cancer types or other diseases, helping doctors decide ...

Polymerase chain reaction (PCR) and rapid (antigen) tests for COVID-19 both involve taking a swab. Results for a PCR test take longer, as it needs to go to a laboratory. It is more costly but tends to ...

It’s best to test for RSV soon after your symptoms start. That’s because you’ll likely have the most virus in your system then. As you get better, the amount of virus will go down. (Photo Credit: ...