
COVID-19 antibody testing - Mayo Clinic
Dec 20, 2022 · Learn how COVID-19 antibody testing is done to find out if you've had a past infection with SARS-CoV-2, the virus that causes coronavirus disease 2019.
Monoclonal antibody drugs for cancer: How they work
Monoclonal antibodies can interfere with that process so that your immune system cells are allowed to work without controls against cancer cells. Directly attacking cancer cells. Certain monoclonal …
Thyroid peroxidase antibody test: What is it? - Mayo Clinic
Jul 9, 2024 · TPO antibodies in the blood may mean you have thyroid disease due to an immune system condition called Hashimoto's disease. With Hashimoto's disease, the immune system makes …
ENA test - Mayo Clinic
Apr 29, 2025 · The extractable nuclear antigen panel, known as the ENA test, panel is a blood test. It is done to look for antibodies associated with certain autoimmune diseases.
ANA test - Mayo Clinic
Aug 17, 2022 · Overview An ANA test detects antinuclear antibodies (ANA) in your blood. Your immune system normally makes antibodies to help you fight infection. In contrast, antinuclear antibodies often …
How do COVID-19 antibody tests differ from diagnostic tests?
Oct 24, 2025 · What are antibodies and why are antibody tests done? Antibodies are proteins. The body makes antibodies when there are things in the body that shouldn't be there, such as viruses. The …
Autoimmune encephalitis - Diagnosis and treatment - Mayo Clinic
Dec 13, 2024 · Tests also help rule out other possible causes of your symptoms, such as infections or other autoimmune conditions. Sometimes people are incorrectly diagnosed with autoimmune …
Hepatitis C antibody test - Mayo Clinic
Overview The hepatitis C antibody test is a simple blood test that checks for a liver infection called hepatitis C. Hepatitis C is the most common type of hepatitis in the United States. It can lead to …
Autoimmune encephalitis - Symptoms and causes - Mayo Clinic
Dec 13, 2024 · Antibodies are part of the immune system. They help protect the body from viruses, bacteria and other substances that can cause illnesses. But in autoimmune encephalitis, the …
Neuromyelitis optica - Diagnosis and treatment - Mayo Clinic
Dec 13, 2024 · Intravenous immunoglobulins, also known as antibodies, may decrease the relapse rate of NMO. Clinical trials Explore Mayo Clinic studies testing new treatments, interventions and tests as …