Why do newborn babies have passive immunity to many diseases?

Answer The antibodies to certain diseases and viruses are passed from Mother to Baby.

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When a person receives a flu vaccination does he develop active or passive immunity?

Active.Foreign microbes, or parts of microbes, are introduced to the body and the immune system reacts and produces antibodies. The antibodies were made in reaction to a foreign body introduced int... Read More »

How can the human body lose immunity to diseases?

Certain diseases such as AIDS can weaken the bodies immune system making it more susceptible to infections and other conditions.

Why do babies have immunity from measles?

Premature babies are prone to develop iron deficiency anemia because of low iron reserve.

Why are babies not born with immunity acquired by parents through infection or vaccination?

Actually babies are born with some antibodies from the mother, and will acquire more as long as the baby breastfeeds.