Question

which of the following is incorrect?
human feces contain many microorganisms.
salmonella can spread via the fecal - oral route.
viruses do not spread via the fecal - oral route.
handwashing can prevent fecal - oral spread of disease.

Explanation:

Many viruses, such as norovirus and hepatitis A virus, can spread via the fecal - oral route. Human feces indeed contain many microorganisms. Salmonella can spread through the fecal - oral route. Handwashing helps prevent the fecal - oral spread of disease by removing pathogens.

Answer:

Viruses do not spread via the fecal-oral route.