[header] How to prevent cytomegalovirus (cmv ) [title] Wash your hands. [step] Washing your hands often and thoroughly with soap and water for 15-20 seconds can help prevent cmv, especially after changing diapers or touching saliva, urine, or nasal secretions from a young child. To wash your hands properly, use soap and lather for at least 10 seconds. 
Be sure to scrub the backs of your hands as well as your palms. Get under the fingernails and between the fingers.