This is a Haemophilus influenzae type B (Hib) vaccine.
A purified sugar from the capsule (outer layer) of the Haemophilus influenzae type B bacterium. This sugar is conjugated (attached) to tetanus toxoid (not toxin) in order to improve the immune response to the sugar
Carbohydrates: normally used as stabilizers in vaccines
Antibody: a protein made by the immune system in response to a foreign particle (antigen). These proteins circulate in the blood and help defend the body against the substance.
Antigen: This is any substance that triggers the immune system to create antibodies. For example, allergens such as pollen are antigens.
Bacterium: the singular of bacteria (one bacterium, two bacteria)
Carbohydrates: another word for sugars
Conjugate: An antigen is attached to a protein in order to improve the protection the vaccine provides.
pH: a measure of how acidic or basic a solution is. The scale ranges from 0 (very acidic) to 14 (very basic). A pH of 7 is neutral.
Toxoid: an inactive version of a toxin produced by a bacterium. The body is able to make antitoxin without being exposed to the actual toxin. Toxoids are not toxic.