In this modern digital age, currency is flowing all over the world from hand to hand and is in more circulation than even air and water. We are all well aware of air, water, soil, food and sexual contact as a medium of transmission of pathogens. But had it ever occurred to you that even currency (monetary notes) can be a cause of transmission of pathogens. The note that you are holding might have completed several social cycles from farmers to dealers, from dealers to grocery shopkeeper to fisherman to bus-conductor and finally into your hands. It is a potential carrier of pathogenic bacteria as it travelled across various places and conditions to your hand. So one must be very careful while exchanging notes and the use of saliva while counting your notes must be strictly avoided.