The hepatitis A virus (HAV) antibody (AB) total test identifies both types of antibodies that the body produces in response to HAV infection. A reactive result means the test has detected HAV ...

A Lyme disease blood test helps determine if you have contracted the bacteria that cause Lyme disease, which is transmitted through infected ticks. The test looks for Lyme disease-specific antibodies ...

Your thyroid is a gland located in your neck. It releases hormones that control your metabolism. It produces a number of different proteins, including thyroglobulin. Your thyroid uses thyroglobulin to ...

If your doctor thinks you might have lupus, they may ask you to take blood tests to check for antibodies in your blood. The most common antibody test is called the antinuclear antibody (ANA) test.

The US Food and Drug Administration has issued its first emergency use authorization for a coronavirus test that looks for antibodies in the blood. That type of test, called a serology test, would be ...

Salvador Perez got really sick in April. He's 53 and spent weeks isolated in his room in his family's Chicago apartment, suffering through burning fevers, shivering chills, intense chest pain and ...