Background: BK polyomavirus is a member of the Polyomaviridae. This virus has spread worldwide and up to 82% of the world populations are serologically positive. BK polyomavirus usually transmits through inhalation or fecal-oral way in childhood. as well as is likely to cause an asymptomatic disease. https://www.marketingjeunesse.com/product-category/daily-moisturizing-shampoo/