I will try to explain simply, that i understood on this disease with my english language.
So isn't a viral disease, the allgrove syndrome is a genetical disease, created when the baby is created.
The father put his dick in the mother and he ejaculate sperm, one of his cell called spermatozoïde fusion with ovum too called mother-cell
the baby is created in the mother by a duplicate content of a mother-cell.
This mother cell have a problem.
A cell is constitute by a cytoplasm and a nucleus (noyau) see picture :
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