Head lice outbreaks can happen anywhere—but in a fast-paced, densely populated place like Manhattan, they tend to spread more quickly than most parents expect. If your child attends school in Manhattan, understanding why lice spread so easily can help you prevent infestations and act quickly when they occur. High Population Density Manhattan is one of the most densely populated areas in the United States. Schools often have: Larger class sizes Shared spaces (libraries, cafete