How does the hib meningitis vaccine help fight the disease?

Antibody barrier: When a patient has antibodies to a disease, they assemble at the point of first invasion and prevent the germ from reproducing in great numbers and forming a generalized infection within the body. In unprotected patients HIB will invade the nasal passages and travel to the brain or bloodstream. If you shut them down at the start, they die off rapidly,and the patient avoids disease.

Prevents Disease: Hib vaccine does not fight the disease but given to prevent children getting infected with this Bacteia