the effect of uv waves on coronavirus and disinfection of ‎hospital and non-hospital surfaces

Corona pandemic has affected the world’s condition from different dimensions, and all ‎countries are trying to combat the disease by applying different methods. an interdisciplinary ‎research is one of the methods used to combat this disease‏ ‏‎ . in‎‏ ‏‎ this regard, researchers ‎decided to use equipment to reduce microbial load and to eliminate the effect of the virus. one ‎of these instruments was the use of uv waves in a reduction of microbial load or pathogenicity. ‎the purpose of this paper is to review the effect of uv waves on the corona virus.‎materials and methods: the search was conducted using the key words of uv, corona, ‎disinfection covid-19 in data basses such as pubmed, science direct, isi from 2013 to 2021 and ‎out of 91 articles, 15 were selected and analyzed.‎findings: studies have shown that uv rays affect viruses. attempts to control the corona virus ‎using uv waves were first made in china. in this method, uv waves inactivate viruses by ‎affecting nucleic acids and breaking the rna structure. so that it can be disinfectant.‎‏ ‏‎ studies ‎have shown that the best effect of uv wave on the corona virus is on the wavelength of 250 - ‎‎300 nm, outside of this wavelength, a longer time must be chosen for disinfection.‎discussion and conclusions: due to the effect of uv waves on the corona virus, this method can ‎be used to disinfect treatment spaces and wherever the virus load is likely to be high it was also ‎used to disinfect industrial tools and electronic equipment that could not be disinfected with ‎common solutions such as alcohol. another advantage of this method is the reduction of the use ‎of disinfectant solutions and the reduction of skin, pulmonary and all kinds of allergies caused ‎by its consumption. it should be noted that one of the limitations of disinfection using uv ‎waves is the cost and manufacturing technology of manufacturing devices. therefore, more ‎studies are needed on the advantages and disadvantages, the effect rate and the cost / ‎effectiveness ratio of using uv waves in the fight against coronavirus.‎