Active artificial immunity.
When a person is vaccinated against a disease so that the bodies immune system produces antibodies to tackle future infections. for example, the meningitis jab, or the cervical cancer jab.
Passive artificial immunity.
An emergency vaccination that gives immediate protection, an injection is given with antibodies already produced. For example the tetanus injection when you cut yourself on a nail or a thorn.
Active natural immunity.
When the body naturally produces antibodies against a disease because they have been infected. the body produces memory B and T cells to combat future infections. and example of this is Chicken Pox.
Passive natural immunity.
When young babies have not yet produced a developed immune system, they rely on the antibodies that crossed the placenta in the womb, and the breast milk.