Leukocytes are white blood cells that help protect people from infection. They are not usually present in the urine, so when they are, it can indicate an infection. Learn more here.

PHILADELPHIA, PA, USA I June 24, 2025 I GSK plc (LSE/NYSE: GSK) today announced that the US Food and Drug Administration (FDA) has approved a 200 mg/mL ...

Learn more about lymphocytes, a type of white blood cell. We look at their function, normal levels, and what happens if levels are too high or too low.

A recent study provides evidence that CD4+ T lymphocytes -- immune system cells also known as helper T cells -- produced by people who received either of the two available messenger RNA (mRNA ...