Children touch a contaminated surface -- like a toy an infected child has had in his mouth -- which gets the virus on their hands.
(Children; touch; a contaminated surface) (an infected child; has had; L:in his mouth) (a toy an infected child has had in his mouth; gets; the virus; on their hands)
Children an infected child a toy an infected child has had in his mouth
touch has had gets
a contaminated surface
L:in his mouth
the virus on their hands