what population is cri du chat affected
Cri du chat syndrome, also known as chromosome 5p deletion syndrome, 5pâ syndrome or Lejeuneâs syndrome, is a rare genetic disorder due to chromosome deletion on chromosome 5. Its name is a French term referring to the characteristic cat-like cry of affected children. It was first described by JÃ©rÃ´me Lejeune in 1963. The condition affects an estimated 1 in 50,000 live births across all ethnicities and is more common in females by a 4:3 ratio.