The diseases were removed from a list of tests the agency conducts for state and local health departments. Experts worry that with drastic staff reductions, the testing may not resume. By Apoorva ...

Complement component 3, often called C3, is an essential protein of the immune system. This protein plays a vital role in the body’s innate immune system, providing the first line of defense against ...

Psychology Today's online self-tests are intended for informational purposes only and are not diagnostic tools. Psychology Today does not capture or store personally identifiable information, and your ...