Please write a review of the literature on the hand hygiene of children in elementary and junior high schools, which can be combined with the current Covid-19 situation. It is best to have the following section: ·Damage to children caused by hand hygiene, ·The loss to the school due to hand hygiene, ·The importance of hand disinfection of children in school, ·The feasibility of adding hand disinfection system to schools Or anything else you think can be added to this lit review. The specific requirements are in the uploaded document. Intro and background should preferably have 1-2 pages, Problem description should have 1-2 pages, and the lit review section should have 2 pages Please use at least 10 resources, and the source is regular, such as .edu, .gov, .org, or from other papers, books, journals, articles.