Hepatitis A blood tests check for immunoglobulin M (IgM) and immunoglobulin G (IgG) antibodies. An IgG-positive and IgM-negative result may suggest immunity to hepatitis A. A doctor may request a ...

Most types of breast cancer produce similar symptoms and are discovered the same way—finding a strange new lump during a self-exam, or a healthcare provider spotting something suspicious during a ...

As the nation experiences what many experts believe is the second-largest wave of COVID infections since the pandemic started, many Americans will be checking to make sure they don’t have the ...

After a recent COVID-19 exposure, Dr. Christina Astley tested positive on an at-home test—but just barely. The line signifying a positive result was so faint that Astley, an endocrinologist at Boston ...

The two most popular techniques for quick COVID-19 testing are serology and molecular tests. Serology tests look for the presence of antibodies brought on by the SARS-CoV-2 virus, and molecular ...

In January 2022, Anthony Arenz, a 51-year-old living in Mesa, Arizona, breathed a small sigh of relief. The Galleri blood test, which screens for 50 types of cancer, hadn't detected any positive signs ...

The McMurray test is a physical examination doctors use for knee injuries. A positive McMurray test means a person likely has a meniscal tear, otherwise known as a knee injury. The femur and tibia are ...

There are two main types of bacteria, and these categories reflect the microbes' biology and their vulnerability to different antibiotics. When you purchase through links on our site, we may earn an ...