If staying at home is not an option then keep your distance from other people. Do not venture too close to other peoples desks and always sneeze and cough into a tissue. While you work throughout the day make sure to wipe down your desk with sanitizer and microfiber cloths. While you work throughout the day make sure to wipe down your desk with sanitizer and microfiber cloths.
This will ensure that the least amount of germs find their way into the air and end up making other people sick. Always make sure your hands are clean. When you come back from the bathroom, even though you already washed your hands, clean them again when you get you your desk