It is not a disease its a disorder called the cry of the cat thus the infant sound like a cat crying. It is caused by genetics

swaddling

sidelining

shushing

swinging

sucking

whimpering means crying softlly; complaining; a baby fussing;

a fussing machine is a person who fusses way too much

An infant's sorrow may perpetuate the stereotype that infants are always crying and difficult to soothe, which can lead to the belief that caring for infants is overwhelming and frustrating.