HIV is synthetic: is acquired by the body's immune after recovery from injury Contagious disease.
Example: after recovery from measles gives the body lifelong immunity.
HIV synthetic two types:
A: Pollen: material containing the disease after killing germs or weaken it so as not to be harmful to the body and vaccine is injected into the body to stimulate the formation of antibodies to the microbes make it able to resist the invasion of germs for a long time.
The vaccine offers in one of the following forms:
1 - industrially debilitating disease bacteria as in the tuberculosis vaccine.
2 - bacterial disease dead as typhoid or cholera vaccine.
3 - poisons (toxins) bacteria as the whooping cough vaccine.
There are vaccines such as double diphtheria and whooping cough.
Note: The vaccine injections in typhoid or Baltharit as in smallpox.
B: Serum: injection of antibodies to diseases created by one of the animals as a result of being injected with weakened or dead germs where blood serum taken this animal because it contains antibodies and injected human.
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immunity