serological tests

Serological tests are laboratory tests that analyze blood samples to detect the presence of specific antibodies or antigens. The body produces antibodies in response to infections, vaccines, or foreign substances. These tests help diagnose diseases, determine immune status, and monitor treatment effectiveness. For example, serological tests can identify infections like HIV or hepatitis and assess if someone has immunity to diseases like measles. By measuring these immune responses, healthcare providers gain insight into a person's health and exposure history.