Abstract The spread of Coronavirus is causing in the society all around the world a considerable degree of fear. worry and concern and particularly among healthcare workers that are at increased risk for infection. This paper gathers the strategy/guidelines to reduce the contamination in Intensive care unit (ICU) and in all the hospital environment. The ASHRAE and REHVA guidelines app... https://parisnaturalfoodes.shop/product-category/zinc-chelate-25-mg/