You had to assume that with the convenience might come a price, and that just may be the case with those pod and similar coffee makers. To make the coffee convenient, water has to be stored and piped around the machine, and that gives all kinds of microorganisms a chance to thrive. Here is a little piece from WBFF television that looks at the problem.
To explain the last comments a bit, particularly in offices that use a carafe, many hands on the carafe handle, often unwashed, can leave a plethora of germs upon it to share. So be careful, be sure to wash your hands appropriately, and encourage frequent and thorough cleaning of the office coffee pot, and any other shared food equipment.