THE IMMUNE SYSTEM

Immune System 2a


NATURAL AND PASSIVE IMMUNITY A free gift
This occurs when antibodies prepared by the mother in her body pass into the baby in the womb through the placenta.
It also occurs when antibodies in mother's milk are transferred to the baby.
These antibodies protect the baby for six months.

Antibodies prepared in laboratory animals can also be injected to provide passive immunity




VACCINES Produced by man
These are safe infectable mild version of the germ or dead germ.
Vaccines are available for Smallpox Diphtheria, Polio, Measles, Whooping Cough and Tetanus.

Vaccination is to provide antigens that stimulate the body (immune system) to produce antibodies in large quantity.
This results in a major immune response when a second natural infection takes place, and thus protection is provided to the vaccinated person.

Immunization
Typical programme for childhood vaccinations
-Three months: Diphtheria, Whooping cough and tetanus in a combined injection, plus polio on sugar lump.
-Five Months: Diphtheria, whooping cough and tetanus in a combined injection, plus polio on a sugar lump.
-Nine mints: Diphtheria whooping cough and tetanus in a combined injection, plus polio on a sugar lump.
-15 months: Measles, mumps and German measles in a combined injection.
-Four to five years: Diphtheria and tetanus in combined injection plus polio on a sugar lump.

Foreign Travel
-You may also have vaccinations if you are traveling abroad, against diseases such as yellow fever.

Immune system
Symptom to remember
- Frequent infection
- Fever

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