Children are most commonly infected. Estimated prevalence rates among children in various world regions are 4â28%. Ascariasis: Ascaris, or roundworm, infection is the common helminthic infection in humans, with an estimated worldwide prevalence of 1 billion. The causative organism, A lumbricoides, is cosmopolitan in distribution, being most abundant in tropical countries.
Definition of hollow. 1  1 : an unfilled space : cavity, hole in the hollow of a tree. 2  2 : a depressed or low part of a surface; especially : a small valley or basin.
the valley. noun. short for The San Fernando Valley, an section of the City of Los Angeles, touching the north/west border of LA county. population 2.5mil (approx). the closer to the edges of the valley you get (the hills), the nicer (more expensive) the property is. the closer to the center of the valley you get (Reseda, Van Nuys, etc), the more ghetto it gets.