The weakened form of the virus or parts of inactivated virus strains to which the immunity from the vaccine is desired. There will also be other ingredients that preserve and prepare the compound for administration. See related question below.
Live bacteria
pus is a collection of living, dead and dying cells as a result of the body fighting a contained infection.
Did you mean: "What is a reaction to harmful substances called?" ? Allergy, infection, poisoning or death.
white bloods cells fights foreign substances in a human body
Gangrene is the medical term meaning that an ischemic area has developed a secondary pus-producing infection.
Routine vaccinations have made prenatal infection rare in the developed world.
Well it goes septic you get very sick and if not treated you die from the staph infection you have developed.
That you have an acute Rubella infection and have developed IgM antibodies.
Infection
About 30% of the worlds' population carries TB.
Lymphocytes release antibodies and molecules that coordinate the immune response.
mast cells