Nature of the risk is the Supreme Court’s term for the method of spreading the
disease. Airborne transmission poses the greatest risk and sexual transmission
the smallest risk in the workplace. When analyzing communicability, the most
important question is whether the mode of transmission for the disease in
question occurs in the workplace. Airborne transmission occurs in all situations,
whereas sexual transmission is usually not a workplace risk. Foodborne
illnesses are a problem for food handlers in the employee cafeteria but do not
pose a threat from assembly line or sales personnel.