In many puppy mills, dogs are kept in cramped quarters with poor sanitation and unfortunately this contributes to illness and the spread of disease. (caninejournal.com)
Poor sanitation in cooking areas, bathrooms, and public areas can lead also to health problems for residents. (jpalmerlaw.com)
I learned that over 80 % of the diseases in the world are caused by poor sanitation and that most of the people affected are children. (theletteredcottage.net)