WTF kind of sins could a 5 year old have that she needs to confess to God and be saved? Does she even comprehend the meaning of being a sinner? Of being saved? I'm Catholic and we have infant baptism to "wash away" original sin. The only trauma for the infant is maybe being scared of the water, but in all honesty, I don't think most parents or attendees even give serious thought that the baby is a sinner. Heck, the baby is not a sinner! A Christening has always meant to me made an official member of the church.
The person who should be confessing is her awful mother (and father) for letting her starve. Sorry she looks exactly as you say and I don't blame genes, I blame not giving her enough or healthy enough food. If anyone is a sinner its David and Jill.