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Passive immunity occurs naturally. An example of passive immunity occur when antibodies are transferred to the fetus from the placenta during pregnancy.
Passive immunity happens when the antibody is already given to you. For example, the antibody that can be passed from mother to child. That is a natural passive immunity. The vaccine given to you when had rabies is also an example of passive immunity because again, what is given to you is already an antibody.
Passive immunity because the antibodies pass from mother to fetus.
passive immunity
active
Passive Immunity & Acquired Immunity ,
Active immunity is long term protection that generally lasts 20-30 years and passive immunity is immediate protection. there are two forms, naturally acquired and artificially acquired. in active immunity the naturally acquired immunity is when you suffer from the disease then recover again. the artificially acquired way is by getting a vaccination. in passive immunity, the naturally acquired way is to receive antibodies from mother in pregnancy and breastfeeding, the artificial way is to have antibodies injected in a serum for immediate response for example when you have been bitten by a poisonous animal. note they are not vaccinated.
Placental transfer of antibodies
A form of acquired immunity resulting from antibodies that are transmitted naturally through the placenta to a fetus or through the colostrum to an infant or artificially by injection of antiserum for treatment or prophylaxis. Passive immunity is not permanent and does not last as long as active immunity.
artificially acquired passive immunity
Natural Passive Immunity
Passive natural immunity