What is the Job of White Blood Cells?

White blood cells (WBC) are considered a body’s protectors against infections and diseases. Think about a body as a house and WBC’s are the security system of the house. When an robber attempts to enter the house, an alarm is sounded in the house so that the authorities can know to show up or this scares away the burglar to prevent theft of anything in the house. In the same way when bacteria enters the body, WBC are activated and immediately attempt to fight the bacteria to prevent sickness in the person.