Letter to the editor.
Pallawela
Janani
J
Isaza
Fernando
F
Iragorri
Sandra
S
D002675:Child, Preschool; D004927:Escherichia coli Infections / Q000635:transmission*; D019453:Escherichia coli O157 / Q000302:isolation & purification*; D005260:Female; D006801:Humans; D013550:Swimming; D014871:Water Microbiology