Invulnerable children
In the beginning of 90s there was the boom that impressed humanity. One unusual child was born. Both parents of the child had AIDS and the baby got the intrauterine infection of this terrible disease. Another analysis made in a year proved that the boy really had AIDS.
But when the baby was six doctors discovered that there was no virus in his blood any more. There were no even traces of this disease in the organism. Two groups of scientists started to investigate this phenomenon independently from one another. The cells got from he boy were investigated and influenced by everything but they were not influenced by any virus or disease being immune.
Then the HIV was tested on these cells and the doze was increased in several times and this concentration could kill the person. And again, there was no any result on the cells, they were still healthy. The immunity of the boy was so good that the child couldn't get sick at all. After the analysis if the DNA of the miracle baby resulted that his code was not characteristic for the ordinary person.
The normal DNA of people has 64 codons, 20 of which are constantly included and the rest are inactive. The miracle baby had 24 active codons.
Maybe nobody would notice this miracle boy if another child didn't have the same unique ability that was the absolute immunity to all diseases of the world. Then hundreds and then thousands of such people appeared. And sometimes these children had even 32 and more codons included in DNA.