A titer is a measurement of the amount or concentration of a substance in a solution. It usually refers to the amount of antibodies found in a person's blood.

What is titer measurement?

An antibody titer test measures the amount of a specific type of antibodies in the blood. Antibodies are proteins created by the immune system to fight pathogens, such as viruses and bacteria.

Is titre a concentration?

Titer (American English) or titre (British English) is a way of expressing concentration. Titer testing employs serial dilution to obtain approximate quantitative information from an analytical procedure that inherently only evaluates as positive or negative.