Etiologic Agents: a chemical, biological, or physical microbial toxin that causes disease in humans

Gastritis: a condition caused by the inflammation of the stomach lining

Glomerulonephritis: an acute inflammation of the kidney, usually caused by an immune response

H. pylori: a bacterium that causes the production of ulcers in the stomach and inflammation in the stomach’s lining

Immunoglobulin G (IgG) the smallest most common antibodies found within the body

Mononucleosis: an infection caused by the Epstein – Barr virus (EBV), where there is a presence of an abnormally large number of mononuclear leukocytes

Streptococcal: relating to Streptococcus, a bacterium known to cause various infections such as scarlet fever and pneumonia