What are the causes for Non-Polio Enterovirus Infection?

Non-polio enterovirus infections are transmitted from person to person. The viruses can be found in the bodily fluids (sputum, nasal secretions, saliva, fluid from skin blisters, or feces) of an infected person. Therefore, close contact with an infected person is the biggest risk factor for non-polio enterovirus infection. Other behaviors that increase the risk of infection include touching surfaces or objects contaminated by bodily fluids from an infected person, changing diapers of an infected person, or drinking water that has been contaminated by virus.

Source: http://www.emedicinehealth.com