Cryptosporidiosis and farm visits.
Pritchard
G C
GC
Fleetwood
A J
AJ
D000818:Animals; D002675:Child, Preschool; D003457:Cryptosporidiosis / Q000635:transmission*; D006801:Humans; D012756:Sheep; D012757:Sheep Diseases / Q000635:transmission*; D015047:Zoonoses / Q000517:prevention & control*