 There has been one report of a child surviving to the age of seven months with complete triploidy syndrome.He failed to exhibit normal mental or physical neonatal development, and died from a "Pneumocystis carinii" infection, which indicates a weak immune system.Triploidy may be the result of either digyny (the extra haploid set is from the mother) or diandry (the extra haploid set is from the father).