Introduction Hand washing is the single most effective way to prevent the spread of germs/micro- organism which prevent communicable diseases. Good hand washing can prevent diseases such as: Shigellosis, E. Coli, Streptococcal Disease, Influenza and the Common Cold. Introduction Hand washing is the single most effective way to prevent the spread of germs/micro- organism which prevent communicable diseases. Good hand washing can prevent diseases such as: Shigellosis, E. Coli, Streptococcal Disease, Influenza and the Common Cold. Introduction Hand washing is the single most effective way to prevent the spread of germs/micro- organism which prevent communicable diseases. Good hand washing can prevent diseases such as: Shigellosis, E. Coli, Streptococcal Disease, Influenza and the Common Cold. Introduction Hand washing is the single most effective way to prevent the spread of germs/micro- organism which prevent communicable diseases. Good hand washing can prevent diseases such as: Shigellosis, E. Coli, Streptococcal Disease, Influenza and the Common Cold